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. Ungalvanized. Size: Body dia: 48mm, Opening: 72mm, Thread Bolt & Nut: M56, Clear Length: 163mm, Pin dia: 58mm, S.W.L: 14ton.