AMAT 3690-01977 / SKT HD Cap Screw 5/16-18 x 1-1/2″LG SST SLV PLT

A socket head cap screw features a cylindrical head and a hexagonal recess. This specialised drive requires a hex wrench or Allen key to tighten or loosen the screw. Hex socket cap screws have threads along their length and can either be fully or partially threaded, depending on the application