Anhui Linghong Hardware Technology Co., Ltd. is China Custom Stainless Steel Self Tapping Screws for Outdoor Use Manufacturers and Stainless Steel Self Tapping Screws Factory, founded in 2017, covering an area of 30 mu with 12,600 square meters of standardized workshops and office buildings. Formerly known as Shanghai Linghong Fasteners Co., Ltd., the company has inherited its core management and production backbone team, and follows the mature operation system formed through 16 years of steady development of Shanghai Linghong. We offer Outdoor Self Tapping Screws for sale.
The company is equipped with more than 80 sets of production equipment, with a stable monthly capacity of approximately 500 tons. It specializes in the production of a full range of screws, including wood screws, chipboard screws, drywall screws, self-drilling screws, self-tapping screws, plasterboard screws, wallboard screws, corrugated screws, and other products. The company has a professional-quality management team and is equipped with precision testing instruments, including metallographic polishing machines and Rockwell hardness testers. Through strict control over first-piece inspection, in-process inspection, and the whole ex-factory process, it ensures the qualified quality of each batch of products with strong quality inspection capabilities. Meanwhile, the company has established a complete packaging system and an experienced management team, adopting a production model of "intelligent and mechanized production as the mainstay, supplemented by manual work". Adhering to excellent quality and a good reputation, the company provides customers with cost-effective, high-quality products.
With over 20 years of deep engagement in the fastener industry, Anhui Linghong Hardware Technology Co., Ltd. upholds the business philosophy of "Quality First, Integrity-Based", and is a comprehensive enterprise integrating design, development, production, and sales. Relying on over 20 years of accumulated production management experience and foreign trade export strength, the company has passed ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System certifications, and established mature overseas sales channels. At present, the company exports 40 to 50 containers to Australia and about 10 containers to Europe and Japan every month, with annual sales exceeding 200 million RMB. The company sincerely welcomes customers at home and abroad to contact us for business negotiations and win-win cooperation!
A 4.2 mm self-drilling screw that cuts a clean hole through a 2 mm steel bracket will spin in place on a 0.8 mm cladding panel, and the same screw that holds a dry indoor ceiling together can rust to the surface within a season on a coastal roof. Neither failure is a manufacturi...
READ MOREA technician presses the point of a pan-head screw against a 1.5 mm galvanised bracket, leans into the driver, and squeezes the trigger. Two seconds later the joint is tight. No nut, no weld and no pre-cut thread were involved: the screw created its own thread inside the steel a...
READ MOREA production manager once asked us to replace a bugle-head wood screw with a countersunk screw because the drawing said "flat head." The first trial run failed: the flat-head screws sat proud, split several panels, and slowed the line until the pilot hole was changed. That one h...
READ MOREAnhui Linghong Hardware Technology Co., Ltd. is a China-based Stainless Steel Self-Tapping Screws manufacturer and supplier, producing fasteners that form their own mating threads without pre-tapping. Our range covers 304, 316, and 316L stainless steel, designed for outdoor, marine, and corrosive environments where carbon steel would fail. We supply standard and custom configurations to construction, furniture, electronics, and industrial OEMs, backed by over 80 production machines and a monthly capacity of 500 tons.
Our factory in Anhui Province operates under ISO 9001, ISO 14001, and ISO 45001 certified systems, with in-house quality control that includes first-piece inspection, in-process checks, and final ex-factory testing. We export 40–50 containers to Australia and about 10 to Europe and Japan monthly, reflecting our reliability as a global fastener supplier.
We manufacture stainless steel self-tapping screws in various head styles, drives, and point types to match specific assembly requirements. The table below outlines our standard offerings and typical uses.
| Head Type | Drive Options | Common Applications |
|---|---|---|
| Pan Head | Phillips, Torx, Square, Hex | Metal-to-metal, electrical enclosures, general fabrication |
| Flat/Countersunk Head | Phillips, Square, Torx | Decking, furniture, where flush finish is required |
| Hex Head | Hex socket, external hex | Structural steel, roofing, heavy-duty fastening |
| Bugle Head | Phillips, Torx | Drywall, wood-to-wood, plasterboard |
| Wafer Head | Phillips, Square | Chipboard, particleboard, thin metal |
| Button Head | Hex socket, Torx | Electronics, appliances, low-profile assemblies |
For outdoor use, we offer self-drilling variants that combine drilling, tapping, and fastening in one step, reducing installation time. Our product line includes security drives like S-type and special bits for tamper-resistant applications, as seen in our SS304 security round head screws.
Choosing the right stainless steel grade is critical for service life. We produce screws from 304 (A2), 316 (A4), and 316L stainless steel wire rods. Grade 304 offers excellent general corrosion resistance for most indoor and outdoor applications. Grade 316 adds molybdenum, improving resistance to chlorides and acids, making it suitable for marine, chemical, and coastal environments. 316L has lower carbon content, reducing sensitization during welding or high-temperature exposure.
We also offer passivated finishes, such as white passivation on S410 material, which enhances surface protection and maintains a clean appearance. For projects requiring specific corrosion performance, we can supply test reports from our metallographic and hardness testing equipment.
Our stainless steel self-tapping screws are manufactured to meet dimensional and mechanical standards, including American (GA sizes) and metric (M) systems. Key specifications we control include:
We ensure consistent thread formation and drive engagement to prevent cam-out and stripping during high-speed installation. Our quality team uses first-piece inspection and in-process patrols to maintain tolerances across batches.
As a manufacturer, we support custom configurations to match your assembly line and end-use requirements. We can adjust head geometry, drive type, thread pitch, point style, and length. For automated feeding, we offer collated screws on plastic or paper strips, compatible with auto-feed screwdrivers. Our engineering team works from your drawings or samples to develop tooling and production processes.
We also provide packaging options such as bulk boxes, poly bags, or retail-ready packaging, with labeling per your specifications. For high-volume orders, we optimize packing to maximize container utilization and reduce shipping costs.
Quality is built into every stage of production. Our laboratory is equipped with metallographic polishing machines and Rockwell hardness testers, enabling us to verify material microstructure and hardness. We perform salt spray testing on request to confirm corrosion resistance. Each batch undergoes first-piece inspection, in-process checks, and final sampling before release. We maintain traceability from raw material to finished goods, ensuring accountability.
Our certifications include ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety. These systems ensure consistent product quality and responsible manufacturing practices.
Stainless steel self-tapping screws are designed for direct installation into materials like wood, plastic, and thin sheet metal. For harder metals, we recommend pre-drilling a pilot hole to avoid thread damage. Self-drilling versions eliminate this step for metal-to-metal applications up to certain thicknesses. Proper torque settings prevent over-tightening, which can strip threads or break the screw. Our technical team can provide installation guidelines based on your substrate and screw size.
Maintenance is minimal due to stainless steel's corrosion resistance. However, in highly aggressive environments, periodic inspection is advised. We offer spare parts and replacement screws for ongoing projects, ensuring long-term availability.
To prepare an accurate quotation and production plan, we need the following details from your team:
With this information, we provide a tailored solution, including technical drawings if needed. Our sales team responds within 12 hours on working days to discuss your project.
304 (A2) provides good corrosion resistance for most applications, while 316 (A4) contains molybdenum, offering superior resistance to chlorides and acids. Choose 316 for marine, coastal, or chemical environments.
Yes, we manufacture custom screws based on your drawings or samples. We can adjust head shape, drive type (Phillips, Torx, square, hex), thread pitch, and point style to meet your assembly needs.
Yes, our self-drilling self-tapping screws feature a drill point that eliminates pre-drilling in metal applications. They are available in various head styles and drives.
MOQ depends on size and complexity. For standard sizes, we can accommodate small trial orders. For custom products, higher quantities may be required to amortize tooling costs.
We follow a strict quality control process: first-piece inspection, in-process patrols, and final sampling. Our lab tests hardness and metallurgical properties, and we can provide certificates of conformance.
Our portfolio also includes Products, Wood Screw, Carbon Steel Wood Screws for applications with different operating ranges, interfaces or integration requirements.
+86 15856352820
malingfei@linghongscrew.com
No. 56, Baishizhan Road, Economic Development Zone, Langxi County, Xuancheng City, Anhui Province, China
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