3/8"-16 x 1-1/4" Yellow Zinc Finish SAE J429 Grade 5 Hex Flange Bolt / THREAD CLASS: 2A FASTENER LENGTH: 1.250 INCHES NOMINAL HEAD STYLE: C7 HEXAGON EXTENDED WASHER HEAD HEIGHT: 0.618 INCHES MINIMUM AND 0.650 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM EXTENDED WASHER DIAMETER: 0.810 INCHES MAXIMUM EXTENDED WASHER THICKNESS: 0.060 INCHES NOMINAL END ITEM IDENTIFICATION: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-318-9902, HET (HEAVY EQUIPMENT TRANSPORTER); 2320-01-471-1326 ,TRUCK,TRACTOR; LOAD HANDLING SYSTEM (LHS); 2320-01-442-1940, TRUCK,CBT,(COMMAND BRIDGE TRANSPORTER); 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM) NOMINAL THREAD DIAMETER: 0.380 INCHES THREAD QUANTITY PER INCH: 16 CRITICALITY CODE JUSTIFICATION: FEAT SPECIAL FEATURES: WEAPON SYSTEM ESSENTIAL MATERIAL: STEEL OVERALL SURFACE TREATMENT: DICHROMATE OVERALL AND ZINC THREAD SERIES DESIGNATOR: UNC