3/8"-16 x 1-1/2" ASTM F837 Hex Drive Grade 18-8 Stainless Steel Socket Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.460 INCHES MINIMUM AND 1.500 INCHES MAXIMUM FASTENER LENGTH: 1.460 INCHES MINIMUM AND 1.500 INCHES MAXIMUM HEAD STYLE: C48 FLAT FILLISTER HEAD DIAMETER: 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM HEAD HEIGHT: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 2320-01-528-6294 TRUCK, TANK NOMINAL THREAD DIAMETER: 0.375 INCHES WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL THREAD QUANTITY PER INCH: 16 PART NAME ASSIGNED BY CONTROLLING AGENCY: SOCKET CAP SCREW MATERIAL: STEEL CORROSION RESISTING OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F837, CONDITION CW ASSN STD SINGLE MATERIAL RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNRC