3/8"-24 x 1-3/4" ASTM F835 Hex Drive Zinc Finish Alloy Steel Flat Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 1.750 INCHES NOMINAL HEAD STYLE: C50 FLAT COUNTERSUNK INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: END ITEM NSN: 5420-01-430-5403; M1 ABRAHMS CHASSIS AND LAUNCHER FOR HEAVY ASSAULT BRIDGE NOMINAL THREAD DIAMETER: 0.375 INCHES WIDTH ACROSS FLATS: 0.219 INCHES NOMINAL THREAD QUANTITY PER INCH: 24 MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNF