Stainless Steel Rod 440C Stainless Steel 440C Rod Outside Diameter 7/16 in 6 ft Overall Length Fabrication Cold Finished Heat Treatable Yes Mechanical Finish Mill Yield Strength 65 000 psi Tensile Strength 100 000 psi 233 Brinell Hardness 99 Rockwell Hardness Includes Material Certificate Yes Standards AMS QQ-S-763 System of Measurement Inch