Key Stock System of Measurement Metric Material Steel Material Grade/Class Ungraded Finish Plain Height 12 mm Thickness Tolerance +0.000/-0.040 mm Length 1 m Length Tolerance +0.000/-0.005 mm Width 12 mm Width Tolerance +0.000/-0.040 mm Pack Size Small Pack Made in North America Yes Key Shape Straight Rockwell Hardness HRB 87 Features Magnetic Tensile Strength 64 000 psi Manufacturer Location Made in USA Key Type Undersized