Fully Threaded Rod, Material Grade/Class Grade B7, Material Steel, Finish Black Oxide, Thread Size 1/2 In.-20, Overall Length 12 ft, Tensile Strength 125,000 psi, System of Measurement Inch, Thread Direction Right Hand, Dimensional Standards ASME B18.31.3, Maximum Temperature 302 Degrees F, Minimum Temperature -58 Degrees F, Minimum Yield Strength 105,000 psi, Rockwell Hardness C35 Max