Demco Locking Plate For Morryde Pinbox. Locking plates are required for Demco Glide Ride MORryde Trailair Tri Glide Trailair Flexair Trailair Rota Flex and 5th Airborn Pin Boxes. The Demco 6025 Locking Plate is for use with Demco's 5th Wheel Autoslide Hitches in conjunction with a MORryde Pinbox. Features of Demco 6025 Locking Plate For Morryde Pinbox For use with Demco's 5th Wheel Autoslide Hitches in conjunction with a MORryde Pinbox Autoslide 5th Wheel Hitches from Demco are available in 13K 18K or 21K Locking plates are required for Demco Glide Ride MORryde Trailair Tri Glide Trailair Flexair Trailair Rota Flex and 5th Airborn Pin Boxes Refer to manufacturer recommendations to ensure a proper fit Package Contents: Demco 6025 Locking Plate For Morryde Pinbox Demco 6025: Locking Plate For Morryde Pinbox