Double-End Threaded Stud, End Type Straight Cut, Material Steel, Material Grade/Class Grade 5, Finish Black Oxide, Wrench Flats No, Overall Length 4 in, System of Measurement Inch, Thread Length A 1 1/8 in, Thread Length B 1 1/8 in, Thread Size A 5/16 In.-18, Thread Size B 5/16 In.-18, Thread Direction A Right Hand, Thread Direction B Right Hand, Color Black, Minimum Yield Strength 120,000 psi, Rockwell Hardness C27 Min, Package Quantity 2