[ UPGRADE EQUIPMENT G80 ] Heavy duty grade 80 transport chain is made using high-strength, heat-treated alloy. The inclusion of 4 x 5/16'' Clevis Snap Hooks increases the versatility and connection strength of the chain (21,000 lbs Break Strength) [ PROFESSIONAL DESIGN ] Designed for connecting from your trailer to your vehicle to help resist complete vehicle-trailer separation during a disconnect. Two pairs of Clevis Snap Hooks provide secure double-hook connections for extra safety and stability. [ HEAVY DUTY CONSTRUCTION ] The high quality, standard link 5/16" size chain is heat-treated, and strength tested for superior quality. The removable zinc-plated pins and cotters make chain installation and replacement easy and hassle-free. [ RELIABLE TRANSPORTATION ] This 36-inch trailer safety chain, equipped with 4 Clevis Snap Hooks, has a grade-80 rating, providing exceptional tensile strength and resisting abrasions and wear from heavy cargo. Yellow zinc chromate finishes provide corrosion protection and make it easy for DOT officials to recognize. [ SAFE COMPLIANT ] All our grade 80 chains and Clevis Snap Hooks are embossed with the proper markings to meet NACM standards. You will be compliant with any roadside inspection. Feel free to contact us if you have any problems. (Each safety chain must meet or exceed the gross trailer weight!!!)