The HP219 hitch pin features a .243-inch diameter and a 4-inch length, crafted from robust zinc for enhanced corrosion resistance and durability. Commonly referred to as bridge pins or hairpin cotter pins, this product is designed for reliable fastening in various towing applications. Its simple yet effective design ensures a secure connection, making it a vital component for trailers, tow bars, and other hitch systems. Perfect for heavy-duty use in both automotive and industrial settings.