Coned Head Lock 4-3/8

4-3/8 inch Barbell Lock - With no internal springs to seize up or break and a Patented O-ring and water-tight cap design to help keep out dirt & corrosion this lock will last a lifetime. It has large 1/2 inch dual lock lugs to prevent false locking and can not be easily popped open, it has an easy 1/4 turn operation. This 5/8 inch pin has a 4-3/8 inch gap and fits all class III and IV 2 inch x 2 inch Receiver hitches and fits the Rapid Hitch Adjustable Receiver System. Comes with 2 rugged keys. Stainless Steel Internal Components.