Industrial Grade Screws, Bolts, and Nuts for Global Infrastructure
Established in 2015, Handan Yongnian District Dongshuo Fastener Manufacturing Co., Ltd. has evolved from a local factory into a globally recognized titan in the fastener industry. Located in the "Fastener Capital of China," our facility integrates R&D, cold heading, thread rolling, and surface treatment into a seamless, high-precision ecosystem. We don't just sell bolts; we provide the mechanical integrity that holds global infrastructure together.
Our engineering team specializes in DIN, ANSI, ISO, and JIS standards, ensuring our products meet the rigorous demands of the automotive, solar energy, and heavy construction sectors. By utilizing 4.8, 8.8, and 12.9 grade materials, we ensure that every leading screw nut and bolt produced under our roof adheres to zero-defect quality control protocols.
Scaling Production through Vertical Integration and Innovation
Monthly Tonnage Capacity
Export Countries Worldwide
QC Compliance Rate
China's dominance in the fastener market is not merely about volume; it is about the industrial cluster effect. Handan Yongnian accounts for nearly 45% of China's fastener output. For global procurement officers, this means unprecedented access to raw materials, specialized heat treatment facilities, and logistical hubs—all within a 10-mile radius. This synergy allows us to offer competitive pricing without compromising metallurgical integrity.
By leveraging AI-driven inventory management and automated production lines, Dongshuo Fasteners mitigates the risks of global supply chain volatility. We provide information gain to our clients by offering real-time tracking and technical white papers on material fatigue and corrosion resistance, ensuring you make informed purchasing decisions.
The shift toward Trivalent Chromium (Cr3+) and Eco-friendly Zinc plating is no longer optional. We are leading the transition to "Green Fasteners" to help our European and North American partners meet ESG requirements and REACH/RoHS compliance.
Implementation of Optical Sorting Machines and automated inspection ensures that dimensions like pitch diameter and thread angle are accurate to within microns, reducing the risk of assembly line failure for our end-users.
With the rise of high-speed rail and EV infrastructure, the demand for Grade 12.9 carbon steel and specialized stainless alloys is surging. Our R&D department is focused on enhancing the tensile strength and shear resistance of our screw nut assemblies.
Providing Specific Solutions for Diverse Global Environments
Our galvanized hexagonal flange nuts (Grade 8.8) are engineered for solar panel mounting systems, offering 25+ years of corrosion resistance in desert and coastal environments.
High-precision DIN934 nuts and flange bolts are utilized in chassis construction, where vibration resistance and torque consistency are critical for safety.
From skyscrapers to bridges, our blackened double-headed bolts provide the foundational strength required for structural steel connections.
Addressing the Technical Needs of Professional Procurement Managers
As a leading supplier, we clarify: Grade 4.8 is standard carbon steel for low-stress applications. Grade 8.8 is high-tensile (quenched and tempered) suitable for machinery. Grade 12.9 is the highest strength alloy steel used for critical structural joints where extreme force is present. Choosing the right grade is vital for safety and cost-efficiency.
We operate under ISO 9001:2015 certification. Every batch of China leading screw nuts undergoes salt spray testing (for coating durability), hardness testing (Rockwell/Vickers), and thread go/no-go gauge inspection. We provide MTC (Material Test Certificates) with every shipment.
Absolutely. We specialize in custom mold development. Whether it’s a unique flange design for the North American market or specialized thread pitches for the European automotive sector, our technical team provides CAD drawings and rapid prototyping before mass production.
Due to our proximity to the Port of Tianjin and Qingdao, our standard lead time for stocked items is 7-10 days. For custom manufacturing runs, lead times typically range from 20-30 days, depending on the complexity of the surface treatment required.
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.
Engineered for Durability and Performance
When you choose Handan Yongnian Dongshuo Fastener Manufacturing Co., Ltd., you are partnering with a factory that values transparency, engineering precision, and long-term reliability. Our "Leading Screw Nut" series represents the pinnacle of Chinese manufacturing excellence.
Address: Handan City, Hebei Province, China
Compliance: ISO 9001, RoHS, CE
Dongshuo
