These Grade 70 Chain assemblies are 5/16″ and include a 15″ j-hook at one end and a grab hook, r-hook, t-hook and mini j-hook on the other end. The forged, heat treated steel has excellent wear and abrasion resistance. Grade: 70 Size: 5/16″ Length: 8′ – 10′ WLL: 4,700 lbs.