Shoulder Screw Shoulder Screw Type Standard Shoulder Screw Head Type Low-Profile Standard Drive Type Slotted Material Stainless Steel Material Grade/Class 18-8 Finish Plain System of Measurement Inch Thread Size 1/4 In.-20 Minimum Thread Length 3/8 in Shoulder Length 3/4 in Shoulder Length Tolerance -0.0 in to +0.002 in Shoulder Diameter 5/16 in Shoulder Diameter Tolerance -0.001 in to +0.0 in Pack Size Small Pack Head Height 1/8 in Head Diameter 7/16 in