This is a A-WH516 Hook, Weld On Chain, 5/16" PN: WH516Main Description As Following : A-WH516 Hook, Weld On Chain, 5/16" P.N: WH516 Chain Size: 5/16"Working Load Limit: 1,900 Lbs. Found in Section & Models : Hitch & Drawbar Parts > Hooks & Chainbinders, (Miscellaneous) (UNDEFINED): SEVERAL, Miscellaneous > Miscellaneous, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Chain Size: 5/16" Working Load Limit: 1,900 Lbs.