Fully Threaded Rod, Material Grade/Class Grade B7, Material Steel, Finish Black Oxide, Thread Size 1 3/8 In.-6, Overall Length 6 ft, Tensile Strength 125,000 psi, System of Measurement Inch, Thread Direction Right Hand, Dimensional Standards ASME B18.31.3, Material Quality Standards ASTM A193, Minimum Yield Strength 105,000 psi, Rockwell Hardness C35 Max