Key Stock System of Measurement Inch Material Aluminum Material Grade/Class QQ-A-225/8 Finish Plain Height 1/4 in Thickness Tolerance +/-0.008 in Length 12 in Length Tolerance +0.000/-0.125 in Width 1/4 in Width Tolerance +/-0.008 in Pack Size Small Pack Made in North America Yes Key Shape Straight Rockwell Hardness BHN 30 Features Non-Magnetic Tensile Strength 18 000 psi Manufacturer Location Made in USA Key Type Bilateral