Shoulder Screw Shoulder Screw Type Standard Shoulder Screw Head Type Ultra-Low-Profile Standard Drive Type Socket Material Stainless Steel Material Grade/Class 316 Finish Plain System of Measurement Metric Thread Size M4-0.7 Minimum Thread Length 5 mm Shoulder Length 20 mm Shoulder Length Tolerance -0.0 mm to +0.05 mm Shoulder Diameter 5 mm Shoulder Diameter Tolerance -0.025 mm to +0.0 mm Pack Size Small Pack Head Height 1.3 mm Head Diameter 8 mm