Within the global manufacturing supply chain, China has become one of the most important production hubs for screws and fasteners. From construction and automotive to electronics, machinery, and industrial manufacturing, a significant portion of the world's screw supply comes from Chinese factories.
The real challenge for buyers is not whether to source from China, but how to identify a screw factory that truly fits their project requirements and can support long-term, stable cooperation.
Based on verified factories, publicly available information, production capacity, OEM/ODM capabilities, and export experience, this article identifies the TOP 5 screw factories in China to help buyers make rational decisions-rather than choosing suppliers based on price alone.
What Defines a High-Quality Screw Factory?
A top-tier screw factory should meet the following criteria:
First, it must be a real manufacturing factory, not a trading company or outsourced integrator-owning its production equipment and quality control processes.
Second, the factory should have a clear product positioning, such as standard fasteners, non-standard custom screws, or high-precision fasteners.
Third, it must offer OEM/ODM capabilities, enabling customization based on drawings, samples, or functional requirements.
Finally, the factory should have stable export experience, with a solid understanding of international quality standards, packaging requirements, and logistics procedures.
The following factories represent leading fastener manufacturers in China.
1. Huizhou ZeYao Hardware Products Co., Ltd. (ZeYao)
ZeYao is a professional manufacturing factory with 19 years of experience in fastener production. Located in Huizhou, Guangdong, the company focuses heavily on non-standard fasteners and OEM/ODM custom manufacturing.
The factory operates more than 160 production machines, including cold heading machines, automatic lathes, CNC machining centers, and secondary processing equipment. Monthly output exceeds 10 million pieces, supporting long-term projects and continuous supply requirements.
Main products include machine screws, self-tapping screws, hex socket screws, special-shaped fasteners, dowel pins, and CNC-machined fasteners. ZeYao works with carbon steel, stainless steel, and alloy steel, offering surface treatments such as zinc plating, nickel plating, black oxide, and anti-corrosion coatings.
Customization Capabilities
ZeYao provides a complete OEM/ODM workflow, including:
Drawing review and structural optimization
Sample development and approval
Mass production planning and quality monitoring
All processes are handled directly by the engineering team-particularly valuable for buyers requiring non-standard dimensions, special structures, or functional fasteners.
The factory follows an ISO quality management system, with multi-stage inspections covering dimensional accuracy, thread performance, torque values, and surface consistency.
Best suited for:
Non-standard screw customization, engineering projects, long-term supply contracts, and customers with strict delivery and consistency requirements.
2. Tianjin Huazhen Fastener Co., Ltd. (Huazhen)
Tianjin Huazhen is a manufacturing factory specializing in standard screws and construction fasteners, exporting to more than 40 countries and regions.
The factory is built around high-efficiency cold heading equipment and standardized production lines, making it ideal for large-volume manufacturing. Main products include drywall screws, self-drilling screws, chipboard screws, bolts, nuts, and washers.
Huazhen has strong experience in surface treatments such as zinc plating and phosphating, suitable for construction and general industrial applications.
Best suited for:
Large-volume standard fastener procurement, construction projects, wholesalers, and price-sensitive buyers.
3. Shanghai Prince Fastener Manufacturing Co., Ltd. (Prince Fastener)
With more than 30 years of industry experience, Prince Fastener is a comprehensive screw factory integrating R&D, manufacturing, and export operations.
Its product range includes self-tapping screws, machine screws, stainless steel fasteners, structural bolts, and engineering-grade custom fasteners. All products are manufactured in compliance with ISO, DIN, ANSI, and JIS international standards.
Thanks to a mature testing system and extensive export experience, Prince Fastener maintains a stable customer base in machinery manufacturing and engineering project markets.
Best suited for:
Export-standard fasteners, equipment assembly, and projects with strict international certification requirements.
4. Shenzhen Yijin Hardware Co., Ltd. (Yijin)
Shenzhen Yijin specializes in high-precision and high-strength fasteners, serving industries with extremely demanding quality requirements, including aerospace, high-speed rail, automotive, and medical devices.
The factory is equipped with advanced machining equipment capable of maintaining tight dimensional tolerances and consistent mechanical performance. Products are primarily non-standard or high-performance fasteners made from alloy steel and stainless steel.
Best suited for:
High-end industrial applications, precision equipment, and projects with strict strength and consistency requirements.
5. Ningbo OuKailuo Hardware Co., Ltd. (OuKailuo)
Ningbo OuKailuo is a comprehensive screw factory offering both standard and custom fasteners. Located in a major port city, it benefits from convenient logistics and export efficiency.
The factory produces machine screws, self-tapping screws, bolts, nuts, washers, and CNC-customized fasteners, while supporting OEM/ODM services and customized packaging solutions.
Best suited for:
General industrial procurement, automotive aftermarket applications, and buyers requiring flexible supply and export support.
How to Choose the Right Screw Factory in China
Before selecting a Chinese screw factory, buyers should clearly define their application scenarios, technical requirements, and long-term sourcing goals.
For Non-Standard or Functional Screws
If your project involves non-standard designs-such as special head shapes, complex structures, composite materials, or specific assembly functions-you should prioritize factories with engineering support and custom manufacturing expertise.
Factories like ZeYao, which specialize in non-standard fasteners, typically offer:
Dedicated engineering teams for drawing evaluation and structural optimization
Complete OEM/ODM workflows from design confirmation to mass production
Multi-station cold heading, CNC machining, and secondary precision processing
Greater flexibility for small batches, multiple SKUs, and iterative design changes
These factories are better suited for equipment manufacturers, engineering projects, brand owners, and customers seeking long-term technical collaboration, rather than one-time price-driven purchases.
For Standard, High-Volume, Cost-Focused Procurement
If your primary need is standard screws in large volumes-such as common self-tapping screws, machine screws, or hex bolts-you should focus on factories with high automation and standardized production systems.
Their strengths typically include:
Complete size ranges with mature tooling or inventory
Stable output for single-specification, high-volume products
Centralized raw material sourcing and strong cost control
Reliable delivery for repetitive, long-term orders
These factories are ideal for traders, wholesalers, distributors, and price-sensitive markets.
For High-Precision or High-Strength Applications
For applications involving automotive components, heavy machinery, rail transit, energy equipment, or structural safety, buyers should prioritize manufacturers with strict quality systems and advanced testing capabilities.
Such factories usually feature:
ISO 9001, IATF 16949, or equivalent quality management systems
Tensile testing, torque testing, salt spray testing, and metallographic analysis
High standards for material performance, heat treatment, and batch consistency
Strong familiarity with international standards such as DIN, ISO, and ANSI
While these factories may not offer the lowest prices, they provide greater long-term reliability, consistency, and risk control, making them suitable for projects with zero tolerance for failure.
Final Thoughts
For buyers, the best screw factory is not necessarily the cheapest one, but the one that best aligns with product requirements and long-term sourcing strategy.
By clearly defining your application, specifications, and purchasing rhythm-and then selecting a Chinese screw factory with matching strengths-you can build a stable, sustainable, and reliable supply partnership.
