Rivets are permanent mechanical fasteners used to join materials together. They have a cylindrical shaft with a head on one end. Rivets have parts including a rivet head, pin, and end. There are different types of rivets like solid, blind, tubular, and split rivets. Rivets are manufactured by cutting and forming metal wires. They are installed using methods like air hammer, rivet gun, or hydraulic pressing. Rivets are used in applications requiring strength and lightweight construction, such as aircraft, ships, buildings, and consumer goods.