Fender Washer Flat Washer Type Oversized Dimensional Standards ASME B18.21.1 Material Stainless Steel Material Grade/Class 316 Finish Plain For Screw Size 1/2 in Inside Diameter 0.5 in Outside Diameter 1 1/4 in Maximum Thickness 0.065 in System of Measurement Inch Minimum Thickness 0.065 in Color Silver Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Pack Size Small Pack Thickness Tolerance 0.047 in to 0.080 in Package Quantity 25