Flat Washer Flat Washer Type SAE Dimensional Standards ASME B18.21.1 SAE Material Stainless Steel Material Grade/Class 316 Finish Plain For Screw Size 3/4 in Inside Diameter 0.813 in Outside Diameter 1 15/32 in Maximum Thickness 0.16 in System of Measurement Inch Minimum Thickness 0.108 in Color Silver Inside Diameter Tolerance +0.030 in -0.007 in Made in North America No Manufacturer Location Globally Sourced Maximum Temperature 302 Degrees F