... (double end studs or full threaded studs). Standard: ASTM A193, A320, DIN975, DIN976, SAE J429 •Threaded rods/stud bolts (double end studs or ... full threaded studs).•Standard: ASTM A193, A320, DIN975, DIN976 ... •Size: 1/4"-3", 1/4"-4", 1/4"-2", M6-M52. •Surface: black, plain, zinc plated, HDG, color zinc plated ...