As a key product in the field of mechanical basic parts, the stainless steel zinc-coated elliptical head screw industry has been accelerating its transformation from scale expansion to high-quality development under the combined influence of policy guidance, technological innovation and the expansion of downstream demand in recent times. The market size is expected to exceed 40.8 billion yuan in 2025, with a year-on-year growth of 5.3%, becoming a growth highlight in the field of metal fasteners.
Policy dividends have charted a clear path for the development of the industry. The Ministry of Industry and Information Technology's "Development Guide for Advanced Basic Components Industry (2024 Edition)" clearly lists high-performance stainless steel fasteners as a key development direction and sets a goal of achieving an independent production rate of over 85% for key basic components by 2025. At the local level, a series of supporting policies have been implemented intensively. Jiangsu Province offers subsidies of up to 15 million yuan to high-end fastener enterprises for technological transformation, while Zhejiang Province supports enterprises in upgrading their galvanizing processes through special funds. Environmental protection policies have been continuously strengthened. The new version of the "Emission Standard of Pollutants for Metal Surface Treatment" has forced enterprises to phase out highly polluting processes. Green technologies such as chromium-free passivation and low-zinc electroplating have become industry standards.
The technological upgrade focuses on the dual breakthroughs of anti-corrosion performance and production efficiency. The traditional hot-dip galvanizing process is gradually withdrawing from the market, and alternative technologies are developing in a diversified manner. The zinc-aluminum-magnesium composite coating technology of Shanghai Aozhan Industrial has enabled the salt spray resistance time of elliptical head screws to exceed 2,000 hours, which is three times longer than that of traditional processes. The chromium-free passivation process developed by enterprises such as Jiangsu Huajie not only reduces the cost of wastewater treatment by 60%, but also enables the products to pass the EU EPD environmental protection certification. The intelligent transformation of the production end has achieved remarkable results. The intelligent factory built by Huajie with an investment of 600 million yuan, through the linkage of three-dimensional warehousing and MES system, has realized the non-standard delivery of elliptical head screws within 7 days, which is 50% more efficient than the traditional mode.
The structural growth of downstream demand has become the core driving force. The performance in the new energy sector was particularly outstanding. The order volume of elliptical head screws for photovoltaic brackets increased by 42% year-on-year due to their carbon emissions being only 1/7 of those of aluminum alloy products. High-specification products for wind power towers need to pass both ASTM and API certifications, and their unit prices are 35% higher than those of ordinary products. Demand in the infrastructure sector remains stable. A cross-sea passage project in the Guangdong-Hong Kong-Macao Greater Bay Area purchased 4.2 million sets of such screws in a single batch, with a contract value of nearly 400 million yuan. The demand for antibacterial stainless steel screws has risen in scenarios such as building curtain walls and Marine engineering, which can reduce maintenance frequency by 30% in hot and humid environments.
The market pattern shows the characteristics of "high-end concentration and regional agglomeration". The M6-M16 specification products account for 62% of the market share. The East China region, with a market share of 45%, has become the core production and sales area. Jiangsu and Zhejiang have gathered leading enterprises such as Jinyi Industrial and Dongming Stainless Steel. The export market has continued to expand. The infrastructure demand of the countries along the "Belt and Road" has driven the export volume of products to increase by 18.7%. Due to the advantage of cost performance, the market share of domestic screws in Southeast Asia and the Middle East has exceeded 60%. However, the industry still faces challenges. Fluctuations in the prices of raw materials such as nickel and chromium have put pressure on costs, and the price competition caused by overcapacity in low-end products has not yet been fully alleviated.
Industry experts point out that under the "dual carbon" goals, green manufacturing capabilities will become the key to competition. In the future, elliptical head screws that integrate PVD coating technology and have full life cycle carbon footprint data are expected to achieve greater breakthroughs in the high-end equipment manufacturing field, promoting the continuous improvement of industry concentration and product added value.