Hitch pins are primarily used for coupling implements and machinery. They are commonly used to secure a car, truck or tractor to trailers, tools, farm equipment and other machines. There are locking hitch pins, bent shaft hitch pins, those with coated handles, detent pins and pins with different shaped handles. Choose from a variety of sizes, lengths and materials. There are other kinds of pins that do similar jobs like cotter pins and lynch pins; choose the one that best fits your needs.