Lock nuts, also known as anti-loosening nuts or retaining nuts, are commonly used in mechanical equipment. Because they offer excellent locking and anti-loosening performance, many people choose to use them. The following are some common types of lock nuts.
1. Flanged lock nuts: One side of the nut features a toothed flange, and the teeth on the flange provide effective anti-loosening protection. They are used in the same way as standard nuts, making them relatively simple to use.

2. Nylon lock nuts: These nuts incorporate a nylon ring in the center, which also provides a locking and anti-loosening effect.
3. Welded nuts: Welded nuts are divided into square and hexagonal types. These nuts have several welding points on the underside; after installation, they are welded in place to achieve a very secure fastening.

4. K-type nuts: These nuts feature a serrated design, effectively combining the functions of a nut and a serrated washer. This combination is very convenient to use and provides excellent anti-loosening performance.
5. All-metal locking nuts: The top choice for high-temperature and high-strength applications, these nuts feature a specially designed exterior that delivers highly effective anti-loosening performance.
