Fasteners are also called standard parts on the market. It is a kind of mechanical parts used for fastener connection, and it is widely used. The characteristics of fasteners: a wide variety of specifications, different performance and uses, and a high degree of standardization, serialization, and generalization. Therefore, some people call a type of fasteners that have national (industry) standards as standard fasteners, or standard parts for short.
Because the specifications, dimensions, tolerances, weight, performance, surface conditions, marking methods of each specific fastener product, as well as the specific requirements for items such as inspection, marking and packaging, are separately stipulated in several national (industry) standards , Such as the British system, the German system and the American system.
Fasteners are the most widely used mechanical basic parts. As my country joined WT in 2001 and entered the ranks of major international trading nations. my country's fastener products are exported to various countries in the world, and fastener products from all over the world are also pouring into the Chinese market. Fasteners, as one of the products with a large import and export volume in my country, are of great practical significance for promoting Chinese fastener companies to go to the world and promoting fastener companies to fully participate in international cooperation and competition. Strategic significance.
