Flat Washer, Flat Washer Type Oversized, Dimensional Standards ASTM F844, Material Stainless Steel, Material Grade/Class 18-8, Finish NL-19, For Screw Size 1/2 in, Inside Diameter 0.531 in, Outside Diameter 2 in, Maximum Thickness 1/8 in, System of Measurement Inch, Minimum Thickness 1/8 in, Color Silver, Material Quality Standards Not Applicable, Pack Size Small Pack, Resistance Properties Corrosion-Resistant, Rockwell Hardness B70, Thickness Tolerance +/-0.015 in