A drop forged, carbon steel shackle with an eye bolt which has a metric coarse thread on one end. Please specify Ungalvanized (Black) or Galvanized shackle is required. Ungalvanized. Size: Body dia: 28mm, Opening: 43mm, Thread Bolt & Nut: M33, Clear Length: 95mm, Pin dia: 34mm, S.W.L: 4.8ton.