Fasteners are a widely used mechanical parts for fastening connections.
In all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, instruments, and supplies. It is characterized by a wide variety of specifications, different performance uses, and standardization, serialization, universal species degree is also very high. Therefore, some people also called the existing national standard of a class of fasteners called standard fasteners, or abbreviated as standard parts. Fasteners are the most widely used mechanical foundations.
As China joined the WTO in 2001 and entered the ranks of major international trading powers. A large number of Chinese fastener products exported to the world, the world's fastener products are also pouring into the Chinese market. As one of the products with large import and export volume in China, fasteners are in line with international standards, which has important practical and strategic significance to promote Chinese fastener enterprises to the world and promote fastener enterprises to fully participate in international cooperation and competition.
Due to the specifications, size, tolerances, weight, performance, surface condition, marking method, and specific requirements for acceptance inspection, marking and packaging of each specific fastener product.