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 1 1/8 in Inside Diameter 1.188 in Outside Diameter 2 1/4 in Maximum Thickness 0.134 in System of Measurement Inch Minimum Thickness 0.134 in Pack Size Small Pack RoHS Compliant No Thickness Tolerance +/-0.026 in Package Quantity 50