CURT 48410 SecureLatch 2 5 16 Inch Ball and Pintle Hitch Hook Combination, 20,000 Pounds, Mount Required pin A 5th wheel gooseneck Rated at 24 A 5th wheel gooseneck plate is essentially a gooseneck hitch that mounts into a set of 5th wheel rails just like a 5th wheel trailer hitch Each trailer ball can be raised to a maximum of 6 11 16" rise or lowered to a maximum of 6 1 2" drop ball capacity Couples to 2 5 16" couplers or lunette eyes with a 2 1 2" or 3" inside diameter Cast iron construction is austempered for superior strength and wear resistance Textured Auto locking system secures primary latch without manual coupling required Cupped hook tightly holds lunette ring fore and aft to reduce chucking and noise Built in back plate helps position coupler or lunette ring for easier hookup Fits SecureLatch pintle mounts with slotted plate (sold separately) Quick