... (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 ... : plain, black, Z.P, H.D.G, etc•Diameter: M3-M20•Materials: stainless steel 304/316, carbon steel, C1043, C1035 ...