Shoulder Screw Shoulder Screw Type Precision Shoulder Screw Head Type Standard Drive Type Socket Material Stainless Steel Material Grade/Class 18-8 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 -0.013 mm to +0.0 mm Pack Size Small Pack Head Height 4 mm Head Diameter 8 mm Dimensional Standards ASME/ANSI B18.3.3