Shoulder Screw, Shoulder Screw Type Precision Shoulder Screw, Head Type Standard, Drive Type Slotted, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, System of Measurement Metric, Thread Size M3-0.5, Minimum Thread Length 4 mm, Shoulder Length 4 mm, Shoulder Length Tolerance -0.0 mm to +0.05 mm, Shoulder Diameter 4 mm, Shoulder Diameter Tolerance -0.013 mm to +0.0 mm, Pack Size Small Pack, Head Height 3 mm, Head Diameter 6 mm, Dimensional Standards ASME/ANSI B18.3.3