Engineered for structural integrity and high-performance industrial applications.
Established in 2015, Handan Yongnian District Dongshuo Fastener Manufacturing Co., Ltd. has emerged as a titan in the professional production of high-performance fasteners.
Located in the fastener hub of China, our company is committed to providing high-quality fastener products and comprehensive solutions across automotive, construction, and heavy machinery industries. As a reputable fastener manufacturer, we utilize advanced production equipment and a professional technical team to meet complex engineering requirements.
The evolution of welding screws from basic hardware to "Smart Fasteners."
Implementing low-carbon boron steel and chrome-moly alloys to enhance torque resistance and weldability. Our R&D focuses on grain refinement to prevent hydrogen embrittlement in 8.8 and 10.9 grade bolts.
Beyond standard galvanization, we are pioneering Zinc-Nickel flake coatings and eco-friendly trivalent passivation, offering 1000+ hours of salt spray resistance (ASTM B117).
Future iterations include "Self-Centering" welding screw geometries optimized for robotic assembly lines, reducing cycle times by 15% and ensuring zero-defect fusion.
How Handan Dongshuo leads the efficiency curve in the global market.
Our Handan-based facility has transitioned into a Fastener 4.0 Smart Factory. By integrating IoT sensors into our cold-heading machines and automated threading lines, we achieve unprecedented consistency in batch production.
Providing structural integrity for the world's most demanding sectors.
Providing DIN 6921 flange bolts and thickened nuts for steel structures, bridges, and high-rise developments where vibration resistance is critical.
Supply of specialized welding screws and lock nuts that meet the rigorous fatigue testing requirements of modern vehicle chassis assembly.
Corrosion-resistant fasteners for solar mounting systems and wind turbine internal components, ensuring 25-year operational lifespans in harsh environments.
Advanced hot-dip galvanized and stainless steel solutions tailored for high-salinity maritime applications.
We ensure all products comply with ISO 9001:2015, DIN, ANSI, and GB standards. Our quality control lab conducts rigorous testing:
We provide comprehensive documentation including MTRs (Material Test Reports), REACH, and RoHS compliance certificates. Our team assists global procurement managers in navigating import regulations and technical specification mapping.
Bulk supply and custom manufacturing for global enterprises.
Expert answers to common technical and logistical questions.
Welding screws provide a permanent, high-strength bond that eliminates the need for access to both sides of a substrate. This is ideal for hollow sections, automotive chassis, and air-tight enclosures where fastening from one side is mandatory.
We utilize Statistical Process Control (SPC) and automated optical sorting machines that check for dimensional accuracy, thread integrity, and head geometry at speeds of up to 500 pieces per minute.
Yes. Aside from standard zinc and black phosphating, we offer Geomet, Magni, and Teflon coatings for specific friction coefficients and superior corrosion resistance in chemical or offshore environments.
After agreement on technical parameters and price, we typically provide samples within 7-14 days. Full-scale production usually commences 20-30 days after sample confirmation, depending on volume.
Yes, we can adjust MOQ based on your specific requirements. We believe in building long-term partnerships starting with successful trial phases.
Expert consultation on material selection, pricing, and global logistics.
Our factory is located in Handan City, Hebei Province, China—just a one-hour drive from Handan Airport. We welcome international clients for on-site factory audits and technical exchanges.
Payment Terms: We accept T/T, L/C, and RMB payments. Standard terms are 30% advance with the balance due before shipment for orders over $1,000.
Contact us for a rapid quote and technical material data sheets.
Dongshuo
