Long Pin. Also known as the Chinook Rudder Casting (2RUD021). This bracket fits older Perception and Aquaterra brand kayaks, some Acadia models, Spectrum, Scimitar, Chinook NW, Jocassee and Keowee tandems, and the Prism sit-on-top kayak. Use this gudgeon (rudder bracket) to repair an older kayak with rudder (remove old bracket carefully). Use for new rudder installations on older kayaks with any other Long Pin style Rudder Kit). Made of cast aluminum, black anodized. Comes with 2 screws, 2 washers and 2 cap nuts. Comes with instructions. Plan carefully and drill holes small enough for screws to cut their own threads in the plastic hull material.