Weldless, drop forged, carbon steel shackle with an eye bolt which has a metric coarse threaded end. Please specify Ungalvanized (Black) or Galvanized shackle is required. Ungalvanized. Size: Body dia: 28mm, Opening: 43mm, Screw Pin Thread: M 33, Clear Length: 127mm, Pin dia: 34mm, S.W.L: 4.8ton.