12L14 Carbon Steel Hex Bar, Material Carbon Steel, Material Grade 12L14, Fabrication Cold Finished, Heat Treatable Yes, Heat Treatment No Heat Treatment, Hex Width 7/16 in, Mechanical Finish Mill, Overall Length 6 ft, Rockwell Hardness Not Rated, Brinell Hardness 85, Tensile Strength Not Rated, Yield Strength 60,000 psi, Machinability 193 Percent, Standards ASTM A108, ASTM A29, Shape Hex Bar, Appearance Unpolished, Length Tolerance +/-6 in, Straightness Tolerance Not Rated