... A193, A320, DIN975, DIN976, SAE J429 •Threaded rods/stud bolts (double end studs or full threaded studs).•Standard: ASTM A193, A320, DIN975 ... , DIN976, SAE J429 •Class: B7, B7M, L7, L7M, B16, B8, B8M, 4.8 ... .8, 10.9, 12.9•ANSI surface: plain, black, Z.P, H.D.G, etc•Diameter: M3-M20•Materials: stainless steel ...