• Background: The fastener industry in Yongnian District started in the early 1970s, when farmers used local steel resources to start small-scale production of basic fasteners such as bolts and nuts. • Features: At first, the production process and equipment were relatively simple, and the products were mainly aimed at the local market to meet the needs of agriculture and simple machinery.

• Agglomeration effect: As market demand expands, more and more farmers and small businesses join in fastener production, the industry gradually gathers, and the prototype of the fastener industry chain is formed. • Government support: The government begins to pay attention to and support this emerging industry, providing policy and financial support to promote the expansion of the industry.

• Establishment of a trading market: In the 1990s, Yongnian District established a professional fastener trading market, which became the first professional fastener market in the country, attracting more customers and merchants to purchase. • Enhancement of visibility: The construction of the trading market promoted the visibility of Yongnian fasteners, allowing them to gradually enter the national market.

• Technology introduction and equipment renewal: Entering the 21st century, Yongnian District fastener enterprises have introduced advanced production equipment and technology, improving production efficiency and product quality. • Standardized production: Under the guidance of the government, enterprises have gradually adopted international standards for production, improving the competitiveness and market recognition of their products.

• Industrial cluster effect: Yongnian District has formed a complete fastener industry chain from raw material supply, production and processing to sales logistics, and has gradually built supporting services including testing, research and development, training, etc. • National market share increase: At this time, Yongnian District's fastener industry has occupied a large share of the national market, and its products are gradually moving towards the high-end market.

• Export expansion: With the advancement of the "Belt and Road" initiative, Yongnian fastener companies are accelerating the expansion of the international market and exporting products to Southeast Asia, Europe, North America and other places. • Brand and innovation: Some companies focus on brand building and product innovation, launch patented products, and enhance their competitiveness in the international market.

• Official recognition: After years of development and achievements, Yongnian District was awarded the title of "China's Fastener Capital" and has become a well-known fastener industry cluster at home and abroad. • Continuous innovation: Yongnian District is still continuing to promote intelligent manufacturing and green production, accelerate digital transformation, and is committed to building a world-class fastener production base.