Double-End Threaded Stud End Type Straight Cut Material Steel Material Grade/Class Grade 5 Finish Black Oxide Wrench Flats No Overall Length 200 mm System of Measurement Metric Thread Length A 55 mm Thread Length B 20 mm Thread Size A M20-2.5 Thread Size B M20-2.5 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