Double-End Threaded Stud w/Wrench Flats, End Type Straight Cut, Material Steel, Material Grade/Class Grade 5, Finish Black Oxide, Wrench Flats Yes, Overall Length 3 in, System of Measurement Inch, Thread Length A 1 in, Thread Length B 1 in, Thread Size A 1/2 In.-13, Thread Size B 1/2 In.-13, 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