A weldless, drop forged, carbon steel shackle with an eye bolt which has metric coarse threads on the end. Please specify Ungalvanized (Black) shackle or Galvanized shackle is required. Galvanized. Size: Body dia: 12mm, Opening: 24mm, Screw Pin Thread: M14, Clear Length: 55mm, Pin dia: 15mm, S.W.L: 0.7ton.