Flat Bar Stock, Aluminum, 3003, H14, Sheet, 12 in Overall Length, Length Tolerance +0.060/-0.000 in, 4 in Overall Width, Width Tolerance +0.060/-0.000 in, 0.125 in Thickness, Thickness Tolerance +/-0.002 in, Heat Treatment No Heat Treatment, Heat Treatable No, Mechanical Finish Mill, Yield Strength 16,000 psi, Tensile Strength 22,000 psi, 40 Brinell Hardness, Includes Material Certificate Yes, Standards ASTM B209, System of Measurement Inch, Tolerance Rating Standard