Fasteners are mechanical parts widely used to secure and join components together.

Fasteners are mechanical components widely used for securing and joining various parts together. They can be found in a wide array of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, and everyday items. Fasteners are characterized by their extensive variety of specifications, diverse performance characteristics and applications, and a high degree of standardization, serialization, and universality. For this reason, some people refer to fastener types that already have national standards as "standard fasteners" or simply "standard parts." Fasteners are among the most widely used fundamental mechanical components. Since China joined the World Trade Organization in 2001 and became one of the world's major trading nations, China's fastener products have been exported in large quantities to countries around the globe, while fastener products from other countries have also been steadily entering the Chinese market. As one of China's key import and export commodities, fasteners play an important role—both practically and strategically—in achieving international integration, encouraging Chinese fastener enterprises to go global, and promoting their full participation in international cooperation and competition. This is especially true given the specific requirements for each fastener product regarding specifications, dimensions, tolerances, weight, performance, surface conditions, marking methods, as well as acceptance criteria, labeling, and packaging procedures.

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High-Strength Fastener Product Standards (Partial)

Fasteners typically include the following 12 types of components.

Fasteners are mechanical parts widely used to secure and join components together.