Nylon is a generic title for a group of synthetic polymers known generically as polyamides. When solid, nylon is used for mechanical parts such as machine screws, gears and other low- to medium-stress components formerly cast in metal. Engineering nylon is developed by extrusion, casting, and injection molding. Type 6, 6 Nylon 101 is the most common commercial grade of nylon, and Nylon 6 is the most common commercial grade of molded nylon.
The melting point of nylon 6, 6 is 509ºF (265ºC).