3/8"-16 x 1" Zinc Finish Case Hardened Hex Serrated Flange Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.000 INCHES NOMINAL FASTENER LENGTH: 1.000 INCHES NOMINAL HEAD STYLE: C7 HEXAGON EXTENDED WASHER END ITEM IDENTIFICATION: NSN 2355-01-567-4930 TRUCK,BOMB SERVICE THREAD QUANTITY PER INCH: 16 SPECIAL FEATURES: MATERIAL - CASE HARDENED STEEL, THREAD - COARSE, TYPE FLANGE BOLT, WRENCH SIZE .562 IN, DIAMETER .375 IN SURFACE TREATMENT: ZINC OVERALL