A weldless, drop forged, carbon steel shackle with a flathead pin which has a hole for a securing pin at one end. Please specify Ungalvanized (Black) or Galvanized shackles is required. Ungalvanized. Size: Body dia: 70mm, Opening: 105mm, Clear Length: 318mm, Pin dia: 83mm, S.W.L: 31.5ton.