A pivot pin is a small cylindrical object used to join two components together in such a way that they can rotate around a fixed axis. There are many different synonyms for pivot pin, including hinge pin, swivel pin, joint pin, pivot rod, hinge rod, pivot bolt, and swivel bolt. These names all refer to a similar type of hardware that is typically used in doors, windows, and other structures where a rotating joint is required. Pivot pins come in a variety of sizes and materials, and can be made from steel, brass, or other alloys depending on the specific application. Regardless of the name, pivot pins are an essential component in many common household and industrial products.