Shoulder Screw, Shoulder Screw Type Standard Shoulder Screw, Head Type Standard, Drive Type Socket, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, System of Measurement Inch, Thread Size 1/2 In.-13, Minimum Thread Length 3/4 in, Shoulder Length 7 in, Shoulder Length Tolerance +/-0.005 in, Shoulder Diameter 5/8 in, Shoulder Diameter Tolerance -0.002 in to -0.004 in, Pack Size Small Pack, Head Height 3/8 in, Head Diameter 7/8 in, Dimensional Standards ASME B18.3