954 Bronze Rod, Material Bronze, Material Grade 954, Outside Diameter 3 1/2 in, Overall Length 6.5 in, Outside Diameter Tolerance +0.034 in/+0.044 in, Standards ASTM B505, ASTM B505M, Yield Strength 32,000 psi, Mechanical Finish Mill, Rockwell Hardness B87, Shape Disc, System of Measurement Inch