Galvanised D Shackles - Can be applied in rigging, lifting, lashing, fishing, trawling, mooring, mining, hoisting, towing and marine applications. Size Available: DS3 - 3mm 1/8" DS4 - 5mm 3/16" DS6 - 6mm 1/4" DS8 - 8mm 5/16" DS10 - 10mm 3/8"