Stainless Steel Flat Bar Stainless Steel 304 Hex Bar 12 in Overall Length Length Tolerance +0.125/-0 in 11/16 in Hex Width Width Tolerance +0.000 in/-0.004 in Fabrication Cold Finished Heat Treatment Annealed Heat Treatable No Mechanical Finish Unpolished Yield Strength 31 200 psi Tensile Strength 73 200 psi 123 Brinell Hardness 70 Rockwell Hardness Includes Material Certificate Yes