... : ASTM 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 ... 4"-4", 1/4"-2", M6-M52. •Surface: black, plain, zinc plated, HDG, color zinc plated, etc•Materials: carbon ... 8, 8.8, 10.9, 12.9•ANSI surface: plain, black, Z.P, H.D.G, etc•Diameter: M3 ...