Split Lock Washer, Lock Washer Type Split Lock, Finish Chrome Plated, Material Steel, For Screw Size 3/8 in, Inside Diameter 0.385 in, Outside Diameter 0.68 in, Maximum Thickness 0.094 in, Minimum Thickness 0.094 in, Color Chrome, Dimensional Standards ASME B18.21.1, Material Grade/Class Not Graded, Pack Size Small Pack, Rockwell Hardness C38, System of Measurement Inch, Thickness Tolerance +/-0.010 in, Package Quantity 50