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: 40mm, Opening: 60mm, Thread Bolt & Nut: M48, Clear Length: 136mm, Pin dia: 48mm, S.W.L: 10ton.