Shim Stock Sheet, Shim Material Brass, Grade 260, Shim Thickness 0.001 in, Thickness Tolerance +/-0.0001 in, Shim Width 6 in, Width Tolerance +/-0.008 in, Shim Length 18 in, Length Tolerance +0.125 in, Shim Temper Half Hard, Tensile Strength (PSI) 57,000 psi, Rockwell Hardness 30T 56-68, Color -, Used For Spacing In Chemical Plants, Food Processing Facilities, Refineries And Other Areas That Require High Corrosion Resistance, Meets/Exceeds ASTM-B19, ASTM-B36, CDA-260, SAE-CA-260