1/4"-20 TPI, 5/16" x 1/4" Shoulder, 303 Stainless Steel, Socket Head, Hex, Shoulder Screw Shoulder Screw Type Hex Nominal Diameter 1/4 in. TPI 20 Thread Series Class-2A Thread Length 7/16 in. Head Style Socket Head Height 7/32 in. Head Width Across...