Key Stock, 12 in L, Steel, 5/8 in W, System of Measurement Inch, Material Steel, Material Grade/Class Grade 1018/Grade 1045, Finish Zinc Plated, Height 7/16 in, Thickness Tolerance + 0.003 /- 0.000 in, Length 12 in, Length Tolerance + 0.000 /- 0.125 in, Width 5/8 in, Width Tolerance + 0.003 /- 0.000 in, Pack Size Small Pack, Made in North America Yes, Properties Corrosion Resistant, Key Shape Straight, Rockwell Hardness HRB 50, Features Magnetic, Tensile Strength 64, 000 psi