5/1.6", Grade 70, Clevis Grab Hook, Zinc Plated Finish, Drop Forged Construction, Hooks With A Clevis Are Easily Attached To Chain Or Fittings By A Removable Clevis Pin, Narrow Throat Opening Can Hook Back On The Chain, Used To Easily Join Attachments To Welded Chain Or Wire Rope, 4,700 LB Maximum Load.