Master Lock 2999DAT Fifth Wheel/King Pin CouplerThe solid steel bracket is powder coated bright red to visually remind the user to remove the lock prior to hitching up again. At 5 8", swivel head chrome plated receiver lock secures the collar while the lock cylinder is protected from the elements by a weather cover. The receiver lock can also be used for towing when not being used to lock the trailer coupler. Commercial recreational fifth wheel king pin couplers Solid steel lock bracket Powder