Double-End Threaded Stud, Material Steel, Material Grade/Class Class 8, Finish Black Oxide, Overall Length 50 mm, System of Measurement Metric, Thread Length A 10 mm, Thread Length B 22 mm, Thread Size A M8-1.25, Thread Size B M8-1.25, Dimensional Standards DIN 939, Rockwell Hardness C22 to C32, Package Quantity 100