Drop forged carbon steel shackle with a hexagon, metric coarse threaded bolt, which has a split pin hole at the end and a securing nut. Please specify Ungalvanized (Black) or galvanized shackle is required. Galvanized. Size: Body dia: 44mm, Opening: 66mm, Thread Bolt & Nut: M48, Clear Length: 149mm, Pin dia: 54mm, S.W.L: 12.5ton.