Socket Head Cap Screw (SHCS), also called cup head screw, features cylindrical head with internal hex drive, tightened by hex allen key. It supports high tightening torque, head remains protruding above workpiece after installation.

Materials: Grade 4.8/8.8/10.9/12.9 carbon steel; A2(304)/A4(316) stainless steel optional. Surface finish: black oxide, blue-white zinc, yellow zinc, passivated for stainless steel. Widely used for moulds, machinery, automation equipment, hydraulic fixtures and precision assembly.