Shoulder Screw, Shoulder Screw Type Precision Shoulder Screw, Head Type Standard, Drive Type Socket, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, System of Measurement Inch, Thread Size 1/4-20, Minimum Thread Length 7/16 in, Shoulder Length 3/8 in, Shoulder Length Tolerance +/-0.005 in, Shoulder Diameter 3/8 in, Shoulder Diameter Tolerance -0.004 in to +0.0 in, Pack Size Small Pack, Head Height 7/32 in, Head Diameter 1/2 in, Tensile Strength 90,000 psi, Drive Size 5/32 in