Key Stock System of Measurement Inch Material Stainless Steel Material Grade/Class 18-8 Finish Plain Height 7/16 in Thickness Tolerance +0.000/-0.003 in Length 6 ft Length Tolerance +/-0.250 in Width 7/16 in Width Tolerance +0.000/-0.003 in Pack Size Small Pack Made in North America Yes Key Shape Straight Rockwell Hardness HRB 82 Features Mildly Magnetic Tensile Strength 70 000 psi Manufacturer Location Made in USA Material Quality Standards ASTM A276 Key Type Undersized