A drop forged, carbon steel shackle with an eye bolt which has metric coarse threads at one end. Please specify Ungalvanized (Black) or Galvanized shackles is required. Ungalvanized. Size: Body dia: 34mm, Opening: 68mm, Screw Pin Thread: M42, Clear Length: 115mm, Pin dia: 42mm, S.W.L: 5ton.