Towing Safety Chain Aazon.co: 5/16" Trailer Safety Chains With Hooks G80 Trailer Chains With 4 X G70 Clevis Safety Clevis Grab Hook Chain [HEAVY DUTY CONSTRUCTION] - The high quality, standard link 5/16 size chain is heat-treated,and strength tested for superior quality. Clevis Hook-Chain Hook | Agri Supply High-quality alloy steel combined with advanced forging technology makes the trailer chain safer and stronger during use. SENKEYFE Log Chain 5/16 by 14 Feet, Grade 80 Tow Chains (Please do not exceed the workload limit!, ) [SAFE & COMPLIANT] - All our grade 80 chains and both hooks are embossed with the proper markings to meet NACM standards. G80 chains provide a higher safe working load than lower grade chains, but weigh the same. PROFESSIONAL DESIGN -- Maximum capacity of 4900 lbs.!Grade 80 log chains are fitted with a grab hook at one end and a slip hook on the other, great for dragging and transporting heavy logs, towing and pulling Maximum capacity of 4900 lbs! The Electrophoresis-treated surface is more resistant to rust and corrosion than low-grade tow chains. [UPGRADE EQUIPMENT G80] - Heavy duty grade 80 transport chain is made using high-strength,heat-treated alloy.