In the modern industrial era, hex nuts and bolts are the "sinews of infrastructure." As a leading China Top Hex Nut Bolt Supplier, we recognize that the demand for high-tensile fasteners is projected to grow by 5.5% CAGR through 2030. This growth is driven by massive investments in renewable energy, aerospace, and high-speed rail.
Whether it is Grade 4.8 for general construction or Grade 8.8 for heavy-duty machinery, the structural integrity of a project depends on the chemical composition and heat treatment of the steel. Our manufacturing process ensures that every hexagonal head is forged with precision, meeting DIN, ISO, and ASTM standards.
We leverage AI-based inspection systems to detect microscopic thread defects. This "Smart Factory" approach ensures that global enterprises receive zero-defect shipments, reducing downtime and maintenance costs in critical applications like solar panel mounting and automotive assembly.
Handan Yongnian District Dongshuo Fastener Manufacturing Co., Ltd. was established in 2015. Located in the heart of China's fastener capital, we sit at the epicenter of the global hardware supply chain. This location provides us with:
| Property Class | Material Specification | Tensile Strength (MPa) | Yield Strength (MPa) | Typical Application |
|---|---|---|---|---|
| Grade 4.8 | Low Carbon Steel | 420 | 340 | Furniture, Light Construction |
| Grade 8.8 | Medium Carbon Steel, Quenched & Tempered | 800 | 640 | Automotive, Industrial Machinery |
| Grade 10.9 | Alloy Steel, Quenched & Tempered | 1040 | 940 | High-Stress Structural Links |
| Stainless A2/A4 | SS304 / SS316 | 500 - 800 | 210 - 600 | Marine & Chemical Environments |
*All products undergo rigorous salt spray testing (up to 500 hours) for galvanized coatings to ensure long-term corrosion resistance.
Compliance with ASTM A307/A325 and Inch-system sizing (UNC/UNF). We provide full documentation for customs clearance, including CO (Certificate of Origin) and MTC (Mill Test Certificate).
Adherence to DIN 933/931 and metric standards. Our products are REACH and RoHS compliant, ensuring they meet the environmental safety standards required for EU entry.
Flexible MOQ (Minimum Order Quantity) and competitive sea-freight logistics. We support localized packaging (Private Labeling) to help regional distributors build their brands.
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"The future of fasteners lies in Green Manufacturing. We are shifting toward trivalent chromium electroplating to provide environmentally friendly anti-corrosion solutions without sacrificing performance."
Our galvanized hex bolts and flange nuts are essential for securing solar panel frames against high wind loads and outdoor exposure.
Supplying U-Bolts and high-grade structural bolts for bridge construction and tunnel boring machines where failure is not an option.
Specialized tapping screws with countersunk heads designed for the furniture industry, providing a flush finish and high pull-out resistance.
Handan Yongnian District Dongshuo Fastener Manufacturing Co., Ltd. was established in 2015. It is an enterprise specializing in the production and operation of fasteners. Our company is committed to providing high-quality fastener products and providing customers with comprehensive solutions in various industries. As a reputable fastener manufacturer, we have advanced production equipment and a professional technical team to meet our customers' needs for different types of fasteners.
Handan Yongnian Dongshuo Fastener Manufacturing Co., Ltd.
Our factory is located in Handan City, Hebei Province, China. You can fly to Handan airport directly; it's only a one-hour drive to our facility. We are ready to provide you with the most competitive quotes and technical support in the industry.
Dongshuo
