{"title":"Drilled Head","description":"\u003cp\u003eMS21250 Drilled Head (H-Variant) Bolts with safety wire holes in head. Precision engineered for high-vibration aerospace and defense applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMade to Order in 4 Weeks · DDP to Your Door.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"ms21250h03004","title":"MS21250H03004 12-Point Flange Bolt — 180 KSI, .1900-32, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H03004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H03004 (supersedes to NASM21250H03004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.1900-32 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.690 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.340–0.350 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.1885–0.1895 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.2500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.265 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.420 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e6,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e3,910 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-171-8087\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.011 lb (5 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-03004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–1.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633441353926,"sku":"MS21250H03004","price":14.9,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h03006","title":"MS21250H03006 12-Point Flange Bolt — 180 KSI, .1900-32, 0.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H03006 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H03006 (supersedes to NASM21250H03006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.1900-32 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.815 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.340–0.350 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.1885–0.1895 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.2500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.265 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.420 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e6,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e3,910 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-168-9224\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.012 lb (5 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-03006\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–1.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633441386694,"sku":"MS21250H03006","price":8.05,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h03010","title":"MS21250H03010 12-Point Flange Bolt — 180 KSI, .1900-32, 0.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H03010 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H03010 (supersedes to NASM21250H03010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.1900-32 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.065 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.340–0.350 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.1885–0.1895 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.2500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.265 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.420 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e6,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e3,910 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-186-5377\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.014 lb (6 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-03010\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–1.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633441484998,"sku":"MS21250H03010","price":12.43,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h03012","title":"MS21250H03012 12-Point Flange Bolt — 180 KSI, .1900-32, 0.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H03012 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H03012 (supersedes to NASM21250H03012)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.1900-32 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.190 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.340–0.350 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.1885–0.1895 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.2500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.265 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.420 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e6,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e3,910 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-118-9074\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.015 lb (7 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-03012\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–1.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633441616070,"sku":"MS21250H03012","price":19.27,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h03022","title":"MS21250H03022 12-Point Flange Bolt — 180 KSI, .1900-32, 1.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H03022 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H03022 (supersedes to NASM21250H03022)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.1900-32 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.815 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.340–0.350 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.1885–0.1895 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.2500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.265 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.420 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e6,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e3,910 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-186-8619\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.020 lb (9 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-03022\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–1.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633443451078,"sku":"MS21250H03022","price":18.09,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04004","title":"MS21250H04004 12-Point Flange Bolt — 180 KSI, .2500-28, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04004 (supersedes to NASM21250H04004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.762 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-942-2186\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.019 lb (9 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633447153862,"sku":"MS21250H04004","price":7.42,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04006","title":"MS21250H04006 12-Point Flange Bolt — 180 KSI, .2500-28, 0.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04006 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04006 (supersedes to NASM21250H04006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.887 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-145-0784\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.021 lb (10 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04006\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633447219398,"sku":"MS21250H04006","price":8.13,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04008","title":"MS21250H04008 12-Point Flange Bolt — 180 KSI, .2500-28, 0.500\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04008 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04008 (supersedes to NASM21250H04008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.500 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.012 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-760-7965\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.023 lb (10 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04008\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633447317702,"sku":"MS21250H04008","price":10.87,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04010","title":"MS21250H04010 12-Point Flange Bolt — 180 KSI, .2500-28, 0.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04010 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04010 (supersedes to NASM21250H04010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.137 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-400-0047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.024 lb (11 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04010\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633449808070,"sku":"MS21250H04010","price":33.98,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04011","title":"MS21250H04011 12-Point Flange Bolt — 180 KSI, .2500-28, 0.686\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04011 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04011 (supersedes to NASM21250H04011)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.686 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.198 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-285-4921\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.025 lb (11 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04011\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633449873606,"sku":"MS21250H04011","price":8.18,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04012","title":"MS21250H04012 12-Point Flange Bolt — 180 KSI, .2500-28, 0.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04012 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04012 (supersedes to NASM21250H04012)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.262 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-530-0196\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.026 lb (12 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04012\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633452921030,"sku":"MS21250H04012","price":4.92,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04014","title":"MS21250H04014 12-Point Flange Bolt — 180 KSI, .2500-28, 0.875\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04014 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04014 (supersedes to NASM21250H04014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.875 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.387 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-472-5392\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.028 lb (13 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04014\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633453084870,"sku":"MS21250H04014","price":10.6,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04016","title":"MS21250H04016 12-Point Flange Bolt — 180 KSI, .2500-28, 1.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04016 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04016 (supersedes to NASM21250H04016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.512 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-472-5391\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.030 lb (13 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04016\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633454264518,"sku":"MS21250H04016","price":5.3,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04022","title":"MS21250H04022 12-Point Flange Bolt — 180 KSI, .2500-28, 1.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04022 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04022 (supersedes to NASM21250H04022)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.887 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-070-9626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.035 lb (16 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04022\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633457049798,"sku":"MS21250H04022","price":60.82,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04024","title":"MS21250H04024 12-Point Flange Bolt — 180 KSI, .2500-28, 1.500\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04024 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04024 (supersedes to NASM21250H04024)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.500 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.012 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-189-3767\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.037 lb (17 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04024\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633457115334,"sku":"MS21250H04024","price":11.56,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04026","title":"MS21250H04026 12-Point Flange Bolt — 180 KSI, .2500-28, 1.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04026 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04026 (supersedes to NASM21250H04026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.137 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-145-0726\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.038 lb (17 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04026\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633457180870,"sku":"MS21250H04026","price":21.83,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04028","title":"MS21250H04028 12-Point Flange Bolt — 180 KSI, .2500-28, 1.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04028 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04028 (supersedes to NASM21250H04028)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.262 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-935-3111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.040 lb (18 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04028\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633461145798,"sku":"MS21250H04028","price":13.65,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04038","title":"MS21250H04038 12-Point Flange Bolt — 180 KSI, .2500-28, 2.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04038 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04038 (supersedes to NASM21250H04038)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.887 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-464-2619\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.049 lb (22 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04038\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633464160454,"sku":"MS21250H04038","price":18.09,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h04058","title":"MS21250H04058 12-Point Flange Bolt — 180 KSI, .2500-28, 3.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H04058 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H04058 (supersedes to NASM21250H04058)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.2500-28 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e3.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e4.137 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.428–0.438 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.2485–0.2495 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3125 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.300 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.492 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e10,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e6,980 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-198-4155\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.066 lb (30 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-04058\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–3.625\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633466486982,"sku":"MS21250H04058","price":13.57,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05004","title":"MS21250H05004 12-Point Flange Bolt — 180 KSI, .3125-24, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05004 (supersedes to NASM21250H05004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.849 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-143-2259\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.033 lb (15 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633466552518,"sku":"MS21250H05004","price":12.73,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05006","title":"MS21250H05006 12-Point Flange Bolt — 180 KSI, .3125-24, 0.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05006 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05006 (supersedes to NASM21250H05006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.974 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-869-4205\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.035 lb (16 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05006\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633469862086,"sku":"MS21250H05006","price":7.42,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05008","title":"MS21250H05008 12-Point Flange Bolt — 180 KSI, .3125-24, 0.500\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05008 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05008 (supersedes to NASM21250H05008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.500 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.099 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-133-0168\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.038 lb (17 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05008\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633470976198,"sku":"MS21250H05008","price":14.9,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05010","title":"MS21250H05010 12-Point Flange Bolt — 180 KSI, .3125-24, 0.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05010 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05010 (supersedes to NASM21250H05010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.224 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-510-5338\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.041 lb (19 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05010\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633471795398,"sku":"MS21250H05010","price":84.82,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05012","title":"MS21250H05012 12-Point Flange Bolt — 180 KSI, .3125-24, 0.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05012 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05012 (supersedes to NASM21250H05012)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.349 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-490-2785\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.044 lb (20 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05012\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633471926470,"sku":"MS21250H05012","price":17.46,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05014","title":"MS21250H05014 12-Point Flange Bolt — 180 KSI, .3125-24, 0.875\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05014 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05014 (supersedes to NASM21250H05014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.875 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.474 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-482-4316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.046 lb (21 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05014\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633473597638,"sku":"MS21250H05014","price":13.65,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05018","title":"MS21250H05018 12-Point Flange Bolt — 180 KSI, .3125-24, 1.125\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05018 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05018 (supersedes to NASM21250H05018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.125 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.724 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-530-0197\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.052 lb (23 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05018\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633473728710,"sku":"MS21250H05018","price":17.95,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05028","title":"MS21250H05028 12-Point Flange Bolt — 180 KSI, .3125-24, 1.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05028 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05028 (supersedes to NASM21250H05028)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.349 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-935-3113\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.065 lb (30 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05028\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633474744518,"sku":"MS21250H05028","price":11.16,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05032","title":"MS21250H05032 12-Point Flange Bolt — 180 KSI, .3125-24, 2.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05032 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05032 (supersedes to NASM21250H05032)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.599 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-133-7195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.071 lb (32 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05032\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633476153542,"sku":"MS21250H05032","price":27.16,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05036","title":"MS21250H05036 12-Point Flange Bolt — 180 KSI, .3125-24, 2.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05036 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05036 (supersedes to NASM21250H05036)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.849 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-260-7698\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.076 lb (35 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05036\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633476219078,"sku":"MS21250H05036","price":30.56,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h05038","title":"MS21250H05038 12-Point Flange Bolt — 180 KSI, .3125-24, 2.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H05038 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H05038 (supersedes to NASM21250H05038)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3125-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.974 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.521–0.531 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3110–0.3120 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.3750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.348 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.579 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e16,600 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e11,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-267-0046\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.079 lb (36 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-05038\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–4.500\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633476350150,"sku":"MS21250H05038","price":18.65,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06004","title":"MS21250H06004 12-Point Flange Bolt — 180 KSI, .3750-24, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06004 (supersedes to NASM21250H06004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.895 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-990-6917\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.052 lb (24 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633477169350,"sku":"MS21250H06004","price":30.21,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06006","title":"MS21250H06006 12-Point Flange Bolt — 180 KSI, .3750-24, 0.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06006 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06006 (supersedes to NASM21250H06006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.020 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-975-2073\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.056 lb (25 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06006\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633480151238,"sku":"MS21250H06006","price":14.79,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06008","title":"MS21250H06008 12-Point Flange Bolt — 180 KSI, .3750-24, 0.500\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06008 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06008 (supersedes to NASM21250H06008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.500 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.145 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-905-8450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.060 lb (27 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06008\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633480184006,"sku":"MS21250H06008","price":7.47,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06010","title":"MS21250H06010 12-Point Flange Bolt — 180 KSI, .3750-24, 0.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06010 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06010 (supersedes to NASM21250H06010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.270 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-929-1690\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.064 lb (29 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06010\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633480249542,"sku":"MS21250H06010","price":32.96,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06012","title":"MS21250H06012 12-Point Flange Bolt — 180 KSI, .3750-24, 0.750\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06012 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06012 (supersedes to NASM21250H06012)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.750 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.395 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-047-3436\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.068 lb (31 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06012\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633480347846,"sku":"MS21250H06012","price":19.89,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06014","title":"MS21250H06014 12-Point Flange Bolt — 180 KSI, .3750-24, 0.875\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06014 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06014 (supersedes to NASM21250H06014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.875 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.520 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-989-5498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.072 lb (33 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06014\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633481986246,"sku":"MS21250H06014","price":46.72,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06016","title":"MS21250H06016 12-Point Flange Bolt — 180 KSI, .3750-24, 1.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06016 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06016 (supersedes to NASM21250H06016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.645 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-869-4206\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.076 lb (34 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06016\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633482641606,"sku":"MS21250H06016","price":22.21,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06018","title":"MS21250H06018 12-Point Flange Bolt — 180 KSI, .3750-24, 1.125\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06018 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06018 (supersedes to NASM21250H06018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.125 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.770 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-464-2639\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.080 lb (36 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06018\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633483231430,"sku":"MS21250H06018","price":24.34,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06022","title":"MS21250H06022 12-Point Flange Bolt — 180 KSI, .3750-24, 1.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06022 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06022 (supersedes to NASM21250H06022)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.020 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-530-0193\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.087 lb (40 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06022\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633483329734,"sku":"MS21250H06022","price":17.24,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06026","title":"MS21250H06026 12-Point Flange Bolt — 180 KSI, .3750-24, 1.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06026 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06026 (supersedes to NASM21250H06026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.270 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-225-1578\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.095 lb (43 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06026\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633483985094,"sku":"MS21250H06026","price":35.59,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06034","title":"MS21250H06034 12-Point Flange Bolt — 180 KSI, .3750-24, 2.125\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06034 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06034 (supersedes to NASM21250H06034)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.125 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.770 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-262-6732\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.111 lb (50 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06034\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633485623494,"sku":"MS21250H06034","price":53.16,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h06048","title":"MS21250H06048 12-Point Flange Bolt — 180 KSI, .3750-24, 3.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H06048 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H06048 (supersedes to NASM21250H06048)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.3750-24 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e3.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e3.645 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.639–0.649 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.3735–0.3745 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.4375 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.388 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.625 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e23,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e17,100 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-040-9750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.138 lb (63 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-06048\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–6.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633485656262,"sku":"MS21250H06048","price":33.45,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h07004","title":"MS21250H07004 12-Point Flange Bolt — 180 KSI, .4375-20, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H07004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H07004 (supersedes to NASM21250H07004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.4375-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e0.991 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.740–0.750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4360–0.4370 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.435 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.721 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e32,500 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e21,200 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-063-2286\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.078 lb (35 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-07004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633485754566,"sku":"MS21250H07004","price":4.41,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h07018","title":"MS21250H07018 12-Point Flange Bolt — 180 KSI, .4375-20, 1.125\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H07018 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H07018 (supersedes to NASM21250H07018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.4375-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.125 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.866 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.740–0.750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4360–0.4370 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.435 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.721 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e32,500 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e21,200 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-049-4945\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.115 lb (52 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-07018\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633485787334,"sku":"MS21250H07018","price":28.46,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h07070","title":"MS21250H07070 12-Point Flange Bolt — 180 KSI, .4375-20, 4.375\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H07070 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H07070 (supersedes to NASM21250H07070)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.4375-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e4.375 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e5.116 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.740–0.750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4360–0.4370 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.435 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.721 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e32,500 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e21,200 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-200-1408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.254 lb (115 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-07070\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633486868678,"sku":"MS21250H07070","price":34.55,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h08004","title":"MS21250H08004 12-Point Flange Bolt — 180 KSI, .5000-20, 0.250\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H08004 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H08004 (supersedes to NASM21250H08004)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.5000-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e0.250 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.038 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.818–0.828 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4985–0.4995 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.504 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.768 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e42,400 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e30,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-00-990-7830\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.107 lb (48 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-08004\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633486901446,"sku":"MS21250H08004","price":113.35,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h08016","title":"MS21250H08016 12-Point Flange Bolt — 180 KSI, .5000-20, 1.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H08016 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H08016 (supersedes to NASM21250H08016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.5000-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e1.788 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.818–0.828 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4985–0.4995 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.504 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.768 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e42,400 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e30,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-344-1549\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.148 lb (67 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-08016\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633488933062,"sku":"MS21250H08016","price":27.42,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h08026","title":"MS21250H08026 12-Point Flange Bolt — 180 KSI, .5000-20, 1.625\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H08026 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H08026 (supersedes to NASM21250H08026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.5000-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.625 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.413 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.818–0.828 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4985–0.4995 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.504 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.768 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e42,400 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e30,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-370-6946\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.183 lb (83 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-08026\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633488998598,"sku":"MS21250H08026","price":33.99,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h08029","title":"MS21250H08029 12-Point Flange Bolt — 180 KSI, .5000-20, 1.811\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H08029 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H08029 (supersedes to NASM21250H08029)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.5000-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e1.811 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.599 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.818–0.828 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4985–0.4995 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.504 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.768 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e42,400 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e30,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003eAssigned per configuration — available on request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003eEAR99 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.194 lb (88 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-08029\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633490407622,"sku":"MS21250H08029","price":198.45,"currency_code":"USD","in_stock":true}]},{"product_id":"ms21250h08032","title":"MS21250H08032 12-Point Flange Bolt — 180 KSI, .5000-20, 2.000\" Grip (Drilled Head)","description":"\u003cp\u003eThe MS21250H08032 is a high-strength 12-point external-wrenching flange bolt designed for tension-critical aerospace structures — airframe joints, engine mounts, rotor and control-system connections where 180 ksi tensile performance and positive wrenching engagement are required. Its flanged 12-point head delivers high clamp force in confined spaces where a standard hex cannot develop sufficient torque. The drilled head accepts safety wire for positive locking in vibration-critical installations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMS21250H08032 (supersedes to NASM21250H08032)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e.5000-20 UNJF-3A per MIL-S-8879\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrip Length\u003c\/td\u003e\n\u003ctd\u003e2.000 in (±.010)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e2.788 in (±.015)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter (A)\u003c\/td\u003e\n\u003ctd\u003e0.818–0.828 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter (B)\u003c\/td\u003e\n\u003ctd\u003e0.4985–0.4995 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Diameter (W)\u003c\/td\u003e\n\u003ctd\u003e0.5625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Height (H)\u003c\/td\u003e\n\u003ctd\u003e0.504 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Length (T)\u003c\/td\u003e\n\u003ctd\u003e0.768 in ref\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000–200,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Shear Strength\u003c\/td\u003e\n\u003ctd\u003e42,400 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength (min)\u003c\/td\u003e\n\u003ctd\u003e30,900 lbf\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAISI 4340 alloy steel (4140 \/ 8740 \/ 6150 alternates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003eHRC 39–43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eCadmium plate + chromate per QQ-P-416 Type II Class 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Marking\u003c\/td\u003e\n\u003ctd\u003eMS21250 + manufacturer's code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcurement Spec\u003c\/td\u003e\n\u003ctd\u003eMIL-B-8831\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Drilling\u003c\/td\u003e\n\u003ctd\u003e4 holes × 0.037 in (±.005), equally spaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDatasheet \u0026amp; Compliance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFSC\u003c\/td\u003e\n\u003ctd\u003e5306 (Bolts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSN\u003c\/td\u003e\n\u003ctd\u003e5306-01-036-5535\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECCN\u003c\/td\u003e\n\u003ctd\u003e9A991 (no license required for standard export)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchedule B\u003c\/td\u003e\n\u003ctd\u003e7318.15.8085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e≈ 0.204 lb (93 g) per piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOQ\u003c\/td\u003e\n\u003ctd\u003eNone — order from 1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer certifications (CoC + mill report + dimensional report) ship FREE with every lot.\u003c\/p\u003e\u003ch3\u003eAlternatives \u0026amp; Related Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUndrilled variant: \u003cstrong\u003eMS21250-08032\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSame diameter group, other grip lengths: 0.250\"–5.000\" grips available\u003c\/li\u003e\n\u003cli\u003eCurrent standard: \u003cstrong\u003eNASM21250\u003c\/strong\u003e (military adoption of MS21250; fully interchangeable)\u003c\/li\u003e\n\u003cli\u003eNot for new design after 4 Dec 1980 per the standard — replacement-in-kind only; we support all legacy fleet demand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLead Time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eMade to order — ships in 4 weeks.\u003c\/strong\u003e Raw material (AISI 4340 bar) is stocked at our Kunshan plant; every lot is machined, heat-treated, plated and inspected to order. No stockouts, no minimums on standard sizes.\u003c\/p\u003e\u003ch3\u003eQuality Documentation\u003c\/h3\u003e\u003cp\u003eEvery lot ships with: Certificate of Conformance (CoC) · mill material report (heat-lot traceable) · full dimensional inspection report · First Article Inspection (FAI) on request. 100% thread and plating verification per MIL-B-8831.\u003c\/p\u003e\u003ch3\u003eShipping \u0026amp; Duties — DDP\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFree express shipping on orders of $300 or more\u003c\/strong\u003e; a flat $49.99 courier charge applies to smaller orders (FedEx\/DHL, 3–7 days worldwide after the 4-week production lead time). US import duty and Section 301 tariffs are included in our prices — delivered duty paid, no customs surprises. Larger programs (\u0026gt;500 pcs or \u0026gt;$5,000): request a quote for FOB terms and volume pricing.\u003c\/p\u003e","brand":"FULLERKREG","offers":[{"title":"EA","offer_id":48633490473158,"sku":"MS21250H08032","price":98.7,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/fullerkregaerospace.com\/collections\/drilled-head.oembed","provider":"Fullerkregaerospace","version":"1.0","type":"link"}