What is nuts with plastic insert?

Nuts with plastic inserts, also known as nylon lock nuts, are fasteners used to secure bolts or screws in place. The plastic insert helps prevent the nut from loosening due to vibration and other external factors. The plastic insert is made of nylon, a flexible and durable material that provides a tight grip between the nut and bolt. These nuts are commonly used in automotive and industrial applications, as well as in household appliances and furniture. They are available in various sizes and types, including hex, wing, and acorn nuts. Nuts with plastic inserts are easy to install and remove, and they can be reused multiple times.