Arbor Shim, Product Type Shim, Round Shim Type Arbor Shim, Inside Diameter 0.503 in, Inside Diameter Tolerance +/-0.005 in, Outside Diameter 0.618 in, Outside Diameter Tolerance +/-0.005 in, Thickness 0.007 in, Thickness Tolerance +/-0.005 in, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, Color Silver, Temper Not Rated, Material Quality Standards ASTM A582, Tensile Strength 90,000 psi, Properties Chemical Resistant, Corrosion Resistant, Rust Resistant