This Burnham Commercial Nut Lock is a fastening component designed to secure mechanical parts and prevent them from loosening due to vibration or torque. It features a 5/16-18 thread size, which is a standard measurement in the fastener industry indicating the diameter and threads per inch. The nut lock is made of nylon, a type of thermoplastic known for its high strength, light weight, and resistance to wear, heat, and corrosion. This material also provides an inherent locking feature, eliminating the need for additional locking components such as washers or adhesives.