Key Stock System of Measurement Inch Material Steel Material Grade/Class Grade 1018/Grade 1045 Finish Plain Height 1/2 in Thickness Tolerance +0.002/-0.000 in Length 12 in Length Tolerance +0.000/-0.125 in Width 1/2 in Width Tolerance +0.002/-0.000 in Pack Size Small Pack Made in North America Yes Key Shape Straight Rockwell Hardness B85 Features Magnetic Tensile Strength 64 000 psi Manufacturer Location Made in USA Material Quality Standards ASTM A29 Key Type Oversized