SAE Washer Flat Washer Type SAE Dimensional Standards ASME B18.22.1 Material Steel Material Grade/Class Grade 2 Finish Black Oxide For Screw Size 9/16 in Inside Diameter 0.594 in Outside Diameter 1 3/16 in Maximum Thickness 0.095 in System of Measurement Inch Minimum Thickness 0.095 in Pack Size Small Pack RoHS Compliant No Thickness Tolerance +0.026/-0.019 in Package Quantity 100