Fasteners, is used for fastening connection and the application of a very wide range of mechanical parts. Fasteners, the use of a wide range of industries, including energy, electronics, electrical, mechanical, chemical, metallurgy, mold, hydraulic and other industries, machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, , Chemicals, instruments and supplies, etc. above, you can see a wide range of fasteners, is the most widely used mechanical foundation pieces. It is characterized by a wide variety of specifications, performance, different purposes, and standardization, serialization, the degree of generalization is also very high. Therefore, it has been the national standard of a class of fasteners known as the standard fasteners, or simply as standard parts.

 

Fastening two or more parts (or components) to become a whole fastening connection used in a class of mechanical parts of the general term.