5/16"-18 TPI, 3/8" x 1/2" Shoulder, 303 Stainless Steel, Socket Head, Hex, Shoulder Screw Shoulder Screw Type Hex Nominal Diameter 5/16 in. TPI 18 Thread Series Class-2A Thread Length 1/2 in. Head Style Socket Head Height 1/4 in. Head Width Across...