Alloy Steel Rod, Material Alloy Steel, Material Grade 8620, Overall Length 24 in, Heat Treatable Heat Treatable, Heat Treatment No Heat Treatment, Mechanical Finish Mill, Outside Diameter 7/8 in, Outside Diameter Tolerance +/-0.003 in, Yield Strength 52,000 psi, Fabrication Cold Rolled, Rockwell Hardness 89 HRB, Brinell Hardness 183 BHN, Machinability 65 Percent, Tensile Strength 92,000 psi, Includes Material Certificate Material Certificate with Lot Number, Standards ASTM A108