A weldless, drop forged, carbon steel shackle with a hexagon, metric coarse threaded bolt, nut, and a split pin hole at the other end. Please specify Ungalvanized (Black) or Galvanized shackle is required. Galvanized. Size: Body dia: 46mm, Opening: 68mm, Thread Bolt & Nut: M48, Clear Length: 212mm, Pin dia: 56mm, S.W.L: 13ton.