Shoulder Screw Shoulder Screw Type Standard Shoulder Screw Head Type Standard Drive Type Socket Material Stainless Steel Material Grade/Class 316 Finish Plain System of Measurement Metric Thread Size M3-0.5 Minimum Thread Length 4.5 mm Shoulder Length 4 mm Shoulder Length Tolerance -0.0 mm to +0.25 mm Shoulder Diameter 4 mm Shoulder Diameter Tolerance -0.04 mm to +0.0 mm Pack Size Small Pack Head Height 3 mm Head Diameter 6 mm Dimensional Standards AMPG 2013 ZS.02