Weldless, drop forged, carbon steel shackle with an eye bolt which has a metric coarse threaded end. Please specify Ungalvanized (Black) or Galvanized shackle is required. Ungalvanized. Size: Body dia: 36mm, Opening: 54mm, Screw Pin Thread: M 42, Clear Length: 169mm, Pin dia: 42mm, S.W.L: 8ton.