Axle Castle Nut Kit – Australia After testing, it can fully cooperate with the original equipment, very convenient to replace and install. Wide Applications: The trailer axle nut kit can be applied to caravan, RV and trailers hubs as well as boat trailer hub, including yachts, rubber dinghy, motorboat, aluminium boat and roadrunner. While the cotter pins are 2., 2’’ Inch long for you to install them easily and cut them to length. Cotter Pin Washer Kit 05193 Front Spindle Castle Nut / Washer / Cotter Pin Kit RV And Boat Trailer Axle Nut Replacement Compatibility: Nut Kit for 1’’ Tread Trailer Axle. Easily replace a broken or missing hardware. Easy to Install and Remove: The trailer nut has smooth and deep threads, easy to install Compatibility: Nut Kit for 1’’ Tread Trailer Axle. Sturdy & Durable Hardware for Tailors: The trailer nut kit are made of premium stainless steel which is corrosion-resistant and wear-resistant, so you can even use them in saltwater, greatly extending the usage of life. OEM Mitsubishi Axle Castle Nut Kit Evo 4-9 Pls confirm whether the diameter of your original castle nuts fits ours or not before placing an order.