Shoulder Screw, Shoulder Screw Type Standard Shoulder Screw, Head Type Standard, Drive Type Hex, Material Stainless Steel, Material Grade/Class 316 H5, Finish Plain, System of Measurement Inch, Thread Size #4-40, Minimum Thread Length 5/32 in, Shoulder Length 3/8 in, Shoulder Length Tolerance +/-0.005 in, Shoulder Diameter 1/8 in, Shoulder Diameter Tolerance -0.004 in to +0.0 in, Pack Size Small Pack, Head Height 1/8 in, Head Diameter 1/4 in, Dimensional Standards AMPG 2012 ZS.01