Why lock nuts are more popular than other nuts

Why are lock nuts more popular than ordinary nuts? The lock nut has strong abrasion and shear resistance. The lock nut is self-locking by the friction between the nut and the bolt.
The lock nut is loved by all walks of life, but this does not mean that the lock nut is popular when it first appeared, but the product becomes excellent through continuous evolution and upgrade, and thus it is widely used.
Technology is the main source of promoting product development. It is also important that humans have a higher demand for products.
1 Scope This standard specifies the dimensions, technical requirements, acceptance rules and measurement methods of lock nuts (nuts for short) and locking devices. This standard applies to the design, production, inspection and user acceptance of nuts and locking devices for tapered bushings.
2 Reference standards The provisions contained in the following standards constitute provisions of this standard through quotation in this standard. At the time of publication, the editions indicated were valid. All standards will be revised, all parties using this standard should explore the possibility of using the latest version of the following standards
3 Terminology The terminology used in this standard conforms to the provisions of GB/T 6930.