Red Hound Auto Long Shank J Hook on 2' x 5/16" Transport Tow Chain Pear Link + Cluster w/T Hook Mini J Combo + Grab Hook Red Hound Auto Long Shank J Hook Heavy Duty Tow Chain 5,400 Lbs Work Load Limit. 5/16" J Hook Size. 2 Clusters -- 2 Hooks -- 2 Foot Tow Chain . Built tough, this rugged, weather resistant, quality tow chain is factory tested and made from the highest quality industrial grade materials. he heavy duty chain is INDUSTRIAL GRADE, made to handle the toughest conditions