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. Galvanized. Size: Body dia: 8mm, Opening: 14mm, Thread Bolt & Nut: M10, Clear Length: 27mm, Pin dia: 10mm, S.W.L: 0.35ton.