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: 30mm, Opening: 45mm, Screw Pin Thread: M 36, Clear Length: 135mm, Pin dia: 36mm, S.W.L: 5.4ton.