This zinc-plated hinge pin is designed for Dorsey style trailers, offering a secure and durable solution for your trailer needs. With a .50 inch diameter and 4 inch length, this hinge pin includes an end hole for a cotter pin, ensuring a reliable fit. Sold individually, this hinge pin is practical and versatile, fitting most Dorsey style trailers. Upgrade your trailer's functionality with this high-quality hinge pin, providing a secure and long-lasting solution for your hauling needs.