Flat Washer, Flat Washer Type Standard, Dimensional Standards AMPG 2001 FL.01, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size #10, Inside Diameter 0.203 in, Outside Diameter 1/2 in, Maximum Thickness 3/32 in, System of Measurement Inch, Minimum Thickness 3/32 in, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A582, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack, Resistance Properties Chemical-Resistant, Corrosion-Resistant