3/8"-16 x 1-1/4" Grade 5 Yellow Zinc Finish Hex Cap Screw / THREAD LENGTH: 1.250 INCHES NOMINAL FASTENER LENGTH: 1.000 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.243 INCHES NOMINAL END ITEM IDENTIFICATION: NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTINGTRUCK); HEMTT FAMILY OF VEHICLES (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 3990-01-444-5196 CEMENT MIXER NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 SPECIAL FEATURES: NHA NSN 2510-01-354-5446 CAB ASSEMBLY MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMATE OVERALL AND ZINC THREAD SERIES DESIGNATOR: UNC