Fully Threaded Rod, Material Grade/Class Grade B7M, Material Steel, Finish Black Oxide, Thread Size 3 In.-8, Overall Length 24 1/2 in, Tensile Strength 100,000 psi, System of Measurement Inch, Thread Direction Right Hand, Material Quality Standards ASTM A193, Maximum Temperature 752 Degrees F, Minimum Temperature -58 Degrees F, Minimum Yield Strength 80,000 psi, Rockwell Hardness B99 Max