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: 14mm, Opening: 24mm, Thread Bolt & Nut: M16, Clear Length: 47mm, Pin dia: 17mm, S.W.L: 1.2ton.