SAE Washer Flat Washer Type SAE Dimensional Standards ASME B18.22.1 SAE Material Steel Material Grade/Class Class 10.9 Finish Zinc Yellow For Screw Size 5/8 in Inside Diameter 0.656 in Outside Diameter 1 5/16 in Maximum Thickness 0.095 in System of Measurement Inch Minimum Thickness 0.095 in Color Yellow Inside Diameter Tolerance 0.649-0.686 Made in North America No Manufacturer Location Globally Sourced Material Quality Standards ASTM A-325 Maximum Temperature 350 Degrees C