Shoulder Screw Shoulder Screw Type Mil. Spec. Shoulder Screw Head Type Standard Drive Type Socket Material Stainless Steel Material Grade/Class 18-8 Finish Plain System of Measurement Inch Thread Size 3/8 In.-16 Minimum Thread Length 5/8 in Shoulder Length 5/8 in Shoulder Length Tolerance +/-0.003 in Shoulder Diameter 1/2 in Shoulder Diameter Tolerance -0.004 in to +0.0 in Pack Size Small Pack Head Height 5/16 in Head Diameter 3/4 in