Double-End Threaded Stud, Material Steel, Material Grade/Class Class 8, Finish Black Oxide, Overall Length 48 mm, System of Measurement Metric, Thread Length A 18 mm, Thread Length B 34 mm, Thread Size A M14-2, Thread Size B M14-2, Dimensional Standards DIN 939, Rockwell Hardness C22 to C32, Package Quantity 50