Andersen Hitches Ultimate Connection Safety Chains are built tough! Safety chains act as a safety system to connect the 5th wheel to the towing vehicle. They come into play in the event of a disconnection. They have been road- tested and meet all current requirements for safety chains. The overall length of the chain with the attached clevis hook is going to measure 38-1/2 inches, just the chain itself is going to measure 35 inches long. They offer a weight capacity of 24,000 pounds. NOTE: The two eyelet bolts replace the king pin coupler bolts that ship with the Ultimate 5th Wheel Connection (Rail and Gooseneck version).