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 Inch Thread Size 7/8 In.-9 Minimum Thread Length 1 1/8 in Shoulder Length 1 1/4 in Shoulder Length Tolerance +/-0.005 in Shoulder Diameter 1 1/4 in Shoulder Diameter Tolerance -0.002 in to -0.004 in Pack Size Small Pack Head Height 3/4 in Head Diameter 1 3/4 in Dimensional Standards ASME B18.3