Slotted Shim Pack, With Tab, 302/304 Stainless Steel, Size C-4 In.x4 In., Temper Full Hard, Thickness (In.) 0.02, Thickness (mm) 0.508, Thickness Tolerance +/-0.0005 In., Width 4 In., Length 4 In., Slot Width 1-1/4 In., Slot Depth 2-5/8 In., Tab Height 1-1/8 In., Tab Width 2-1/2 In., Bolt Size 3/4 In. - 1-1/4 In., Color Silver Metal, Tensile Strength (PSI) 185, 000 P.S.I. (MIN) for 302SS & 75, 000 P.S.I. (MIN) for 304SS, Rockwell Hardness 35-45 RC, Resists Rust and Corrosion