Curt 158mm Zinc Super Duty Hitch Pin, Limited Lifetime Warranty CURT 158mm Super Duty Hitch Pin and clips are ready to work They provide reliable installation for any ball mount or hitch-mounted accessory making them the perfect fit for class 3, 4, and 5 trailer 50mm Square Hitches When you mount a ball mount on your trailer hitch, you expect it to stay put Whatever type of load you are hauling, having towing equipment that can work as hard as you do is a must CURT 158mm Super Duty Hitch Pin are also constructed with a 105-degree bend, creating a useful handle for a better grip and allowing the pin to stay securely engaged in the trailer hitch and ball mount Secures ball mounts and other receiver tube inserts Before towing, be sure the hitch pin is in place and securely fastened with the clip Never exceed the lowest weight capacity of any towing component