Anhui Linghong Hardware Technology Co., Ltd. is China Custom Carbon Steel Self Tapping Screws for Metal Manufacturers and Carbon 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 Carbon Steel 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 MOREAs a dedicated Carbon Steel Self-Tapping Screws manufacturer, Anhui Linghong Hardware Technology Co., Ltd. produces fasteners that cut or form their own mating threads as they are driven, eliminating the need for pre-tapping. Our screws are cold-headed from high-quality carbon steel, then heat-treated to achieve a hard surface with a tough core—resisting breakage during installation. We supply a broad range of head styles, drives, thread forms, and surface finishes to meet the demands of construction, metal fabrication, and industrial assembly.
With over 80 sets of production equipment and a stable monthly capacity of 500 tons, we support both standard catalog orders and custom non-standard designs. Our factory in Anhui, China, operates under ISO 9001, ISO 14001, and ISO 45001 certified management systems, ensuring consistent quality from incoming wire to finished packaging.
We manufacture self-tapping screws in multiple configurations, each suited to specific substrates and installation methods. The table below outlines our primary types and their typical applications.
| Type | Head Style / Drive | Typical Applications |
|---|---|---|
| Pan Head | Phillips, Pozidriv, Torx, Square | General sheet metal, plastic, and wood-to-metal fastening |
| Countersunk Head | Phillips, Torx, Square | Flush-mount applications in cabinetry, hinges, and trim |
| Hex Head | Hex, with or without washer | Steel framing, roofing, and heavy-duty metal connections |
| Button Head | Torx, Phillips | Low-profile fastening in electronics and automotive assemblies |
| Wafer Head | Phillips, Torx | Particleboard, MDF, and thin metal where a larger bearing surface is needed |
| Self-Drilling (Tek) | Hex, Phillips, Torx | Metal-to-metal fastening without pre-drilling; ideal for steel studs and cladding |
For specialized needs, we also produce Self-Drilling Self-Tapping Screws that combine a drill point with tapping threads, reducing installation steps on steel structures.
We select carbon steel wire grades that balance strength and formability. After cold heading, screws undergo heat treatment to achieve a surface hardness that resists wear, while the core retains ductility to prevent brittle failure. This combination is critical for self-tapping screws, which must cut threads without stripping or snapping.
Carbon steel is prone to rust, so we offer a range of protective coatings to match your service environment. Our standard options include:
We can also supply screws with Stainless Steel Self-Tapping Screws for maximum corrosion resistance in harsh environments.
The thread geometry determines how the screw cuts or forms threads. We produce:
Our quality team follows a strict inspection protocol: first-piece inspection, in-process patrol, and final ex-factory checks. We use precision instruments such as metallographic polishing machines and Rockwell hardness testers to verify case depth and core hardness. Each batch is traceable, and we can provide material certificates and test reports on request.
We understand that standard screws don't always fit your assembly. Our engineering team can modify head dimensions, drive types, thread pitch, point geometry, and length to meet your drawings or samples. We also support custom packaging—from small boxes to bulk cartons—and can apply special coatings for salt spray requirements.
To provide an accurate quotation and production plan, we need the following details:
Send us a drawing, sample, or simply describe your project—we'll recommend the most cost-effective configuration.
What is the difference between self-tapping and self-drilling screws?
Self-tapping screws cut or form threads in a pre-drilled hole or soft material like wood. Self-drilling screws have a drill point that creates its own hole in metal, eliminating the need for pre-drilling. We offer both types.
Can you match a specific color or finish?
Yes, we provide custom finishes including painted heads (e.g., RAL colors), antique bronze, and various plating options. Specify your requirement, and we'll match it.
What is your minimum order quantity?
MOQ depends on size and finish. For standard carbon steel self-tapping screws, we typically require 500 kg, but we can discuss lower quantities for samples or prototypes.
How do you ensure screws don't break during installation?
Our heat treatment process balances surface hardness and core toughness. We test hardness and perform torque tests to ensure the screw can withstand installation forces without snapping.
Do you provide certificates for export?
Yes, we can provide ISO certificates, material test reports, and other documentation required for customs clearance in your country.
Our portfolio also includes Products 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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