Large O.D. & Thick Oversized Washer, Flat Washer Type Oversized, Dimensional Standards AMPG 2001 FL.05, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size 3/8 in, Inside Diameter 0.406 in, Outside Diameter 2 in, Maximum Thickness 1/8 in, System of Measurement Inch, Minimum Thickness 1/8 in, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A582, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack