Beveled Washer Flat Washer Type Beveled Material Steel Material Grade/Class Grade 5 Finish Black Oxide For Screw Size 7/16 in Inside Diameter 0.469 in Outside Diameter 1 in Maximum Thickness 0.156 in System of Measurement Inch Minimum Thickness 0.156 in Inside Diameter Tolerance +/-0.010 in Outside Diameter Tolerance +/-0.010 in Pack Size Small Pack Rockwell Hardness C4 Thickness Tolerance +0.005/-0.020 in Package Quantity 10