Located in the heart of China's fastener capital, Handan Yongnian District Dongshuo Fastener Manufacturing Co., Ltd. leverages a complete industrial ecosystem. Our proximity to raw material steel mills and specialized heat treatment facilities ensures a 30% faster production cycle compared to international competitors.
Our Hex Hds (Hex Head) series utilizes premium Boron steel and Carbon steel (Grade 4.8, 8.8, 10.9, 12.9). By implementing Cold Heading Technology and vacuum quenching, we guarantee tensile strengths that exceed DIN and ASTM international benchmarks.
Understanding the nuances of global trade, we provide comprehensive documentation including MTC (Material Test Certificates), RoHS compliance, and ISO 9001:2015 quality management tracking. We serve Tier-1 contractors in Europe, Southeast Asia, and North America.
For global enterprises, the challenge of sourcing Hex Hds from China often lies in standard alignment. At Dongshuo, we bridge this gap through Technical Localization.
Our "Quality-First" philosophy is not just a slogan; it is backed by a professional technical team established since 2015, ensuring that every batch of galvanized hexagon head combination bolts or U-bolts fits perfectly into your local assembly line.
1. Digital Manufacturing: Integration of AI-driven sorting machines to ensure "Zero Defect" shipments.
2. Green Coating: Transitioning from traditional Cr6+ galvanization to eco-friendly Zinc-Nickel and Geomet coatings.
3. Lightweighting: High-strength Grade 12.9 fasteners allowing for smaller bolt diameters without compromising structural integrity.
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.
Our wide product range includes bolts, nuts, screws, washers and other fasteners. Through strict quality control and continuous technological innovation, we ensure that every product has excellent quality and reliability. Whether in construction, automotive, machinery, electronics or other fields, our products can meet the needs of our customers.
In the fierce market competition environment, we always adhere to the customer-centered concept. In order to meet the needs of our customers, we provide customized solutions and are able to deliver on time.
High-strength DIN 6921 flange hexagon bolts are essential for vibration-resistant bridge assemblies and skyscraper frameworks, offering superior torque retention.
Our galvanized hexagonal flange nuts and customized U-bolts provide the safety and durability required for chassis and suspension systems.
Weatherproof yellow zinc plated bolts are used extensively in solar panel mounting systems and wind turbine structural assemblies due to their high corrosion resistance.
Our leadership stems from integrating the full production chain—from raw material selection to cold forging, heat treatment, and surface coating—under one ISO-certified management system, ensuring price competitiveness and quality consistency.
We provide pre-shipment inspections (PSI) and third-party testing (SGS/TUV) upon request. Our traceability system allows us to track every bolt back to its original steel wire batch.
Yes. Our engineering department specializes in "Non-standard Fastener Customization." We can manufacture various irregular U-bolts and double-headed bolts based on your CAD drawings or physical samples.
Our company is committed to providing high quality fastener products and comprehensive solutions for customers in various industries. We have advanced production equipment and professional technical team, which can meet the needs of customers for different types of fasteners.
We offer Black/Grey Phosphating, Blue/White/Yellow Zinc Plating, Hot Dip Galvanizing (HDG), and specialized Dacromet coatings for extreme environments.
Dongshuo Fastener
