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