Anhui Linghong Hardware Technology Co., Ltd. is China Custom Sheet Metal Self Tapping Screws Manufacturers and Self Tapping Screws Suppliers, 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 Sheet Metal 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 Self Tapping Screw manufacturer, Anhui Linghong Hardware Technology Co., Ltd. produces a full range of thread-forming and thread-cutting screws that eliminate pre-tapping and speed up production lines. Our screws are engineered for sheet metal, plastic, light-gauge steel, and wood applications, with head styles, drive systems, and surface treatments matched to your assembly environment.
We operate a 12,600 m² factory in Anhui, China, with over 80 production lines and a stable monthly capacity of 500 tons. Our in-house quality team uses metallographic polishing and Rockwell hardness testing to verify case depth and core toughness on every batch, so you receive fasteners that drive consistently and hold under vibration.
We supply self-tapping screws in carbon steel and stainless steel, with head geometries and point styles selected for specific substrates and installation tools. The table below shows the main categories and their typical fit.
| Category | Material / Finish | Typical Application |
|---|---|---|
| Carbon Steel Self-Tapping Screws | Carbon steel with yellow zinc, blue-white zinc, mechanical zinc, or Ruspert | Metal-to-metal, plastic, and wood assemblies requiring high strength and corrosion resistance |
| Stainless Steel Self-Tapping Screws | 304, 316, 316L stainless steel | Outdoor, marine, and corrosive environments where long-term reliability is critical |
| Bugle Head Self-Tapping Screws | Carbon steel or 304 SS; black phosphate, colored zinc, blue-white zinc | Drywall, gypsum board, MDF, and decorative panels; countersunk finish for smooth surfaces |
| Hex Head Self-Tapping Screws | Carbon steel with painted or plated finishes | Structural steel, roofing, and heavy equipment where higher torque is applied |
| Countersunk Head Self-Tapping Screws | Carbon steel or stainless steel | Applications requiring a flush surface, such as hinges, trim, and electronic enclosures |
| Wafer Head Self-Tapping Screws | Carbon steel or stainless steel | Cladding, panels, and applications where a larger bearing surface is needed |
| Button Head Self-Tapping Screws | Carbon steel or stainless steel | Low-profile fastening for furniture, appliances, and consumer products |
| Pan Head Self-Tapping Screws | Carbon steel or stainless steel | General-purpose fastening in metal and plastic assemblies |
| Self-Drilling Self-Tapping Screws | Carbon steel or stainless steel with drill point | Metal-to-metal fastening without pre-drilling, ideal for steel framing and cladding |
Self-tapping screws fall into two broad families. Thread-forming screws displace material to create a tight, stress-resistant thread, best for ductile plastics and thin sheet metal. Thread-cutting screws have a cutting edge that removes material, making them suitable for thicker metal, die-castings, and harder plastics where forming would cause cracking.
Our range includes both types, with sharp points for soft substrates and drill points for metal. We also offer specialized thread forms like Hi-Lo for plastics and triangular-point designs that reduce driving torque and prevent splitting in wood.
For indoor assemblies where cost is a priority, carbon steel with zinc plating provides adequate corrosion protection. For outdoor or high-humidity environments, we recommend stainless steel grades 304 or 316, or carbon steel with a Ruspert or mechanical zinc coating for extended salt-spray resistance.
Head geometry affects both installation speed and final appearance. Bugle and countersunk heads sit flush, while pan, wafer, and button heads provide a low-profile bearing surface. Hex heads allow higher torque transfer for structural connections.
Drive systems include Phillips, Pozidriv, Torx, and tamper-resistant Torx. For automated assembly, we can supply screws with collated strips or in bulk packaging that feed reliably into your existing screwdrivers.
We operate under ISO 9001, ISO 14001, and ISO 45001 certified systems. Every production batch undergoes first-piece inspection, in-process patrol checks, and final ex-factory testing. Our lab uses metallographic polishing to verify case depth and Rockwell hardness to confirm core toughness, ensuring screws resist stripping and breaking during installation.
We also perform salt-spray testing on plated samples to validate corrosion resistance, and torque testing to confirm that the drive recess and head geometry meet your installation tooling requirements.
We support non-standard customization, including special lengths, thread pitches, point styles, and head markings. Our engineering team works from your drawing or sample to produce a screw that meets your dimensional and performance specifications.
For high-volume projects, we can also adjust packaging—from small boxes to bulk cartons or palletized loads—to match your line-side handling and distribution needs.
To prepare an accurate quotation and production plan, we need the following details:
Self-tapping screws cut or form threads in a pre-drilled pilot hole. Self-drilling screws have a drill point that creates the hole and taps the thread in one operation, eliminating the need for pre-drilling. We offer both types; choose self-drilling for metal-to-metal applications.
Yes, we produce custom head styles, drive recesses, and point geometries. Send us a drawing or sample, and we will confirm feasibility and produce a prototype for your approval.
For outdoor exposure, we recommend stainless steel 304 or 316, or carbon steel with a Ruspert or mechanical zinc coating. These provide high salt-spray resistance and long service life.
We follow ISO 9001 procedures with first-piece inspection, in-process checks, and final testing. Our lab equipment verifies hardness and coating thickness, and we keep batch records for traceability.
Lead time depends on the complexity and quantity. For standard items, we can ship from stock or within a short production cycle. For custom orders, we will provide a confirmed schedule after receiving your specifications.
+86 15856352820
malingfei@linghongscrew.com
No. 56, Baishizhan Road, Economic Development Zone, Langxi County, Xuancheng City, Anhui Province, China
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