Anhui Linghong Hardware Technology Co., Ltd. is China Custom Hex Head Self Tapping Screws For Roofing Manufacturers and Hex Head 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 Hex Head 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 Hex Head Self-Tapping Screws manufacturer, Anhui Linghong Hardware Technology Co., Ltd. supplies externally driven fasteners that combine a hex head, self-tapping thread, and sharp point for direct installation into steel, aluminum, wood, and plastics. Our range is built for roofing, steel framing, and industrial assembly where high torque and vibration resistance are non-negotiable.
With over 20 years in the fastener industry and a 12,600 m² factory in Anhui, we produce these screws in carbon steel and stainless steel, with capacities up to 500 tons per month. Our ISO 9001, 14001, and 45001 certifications underpin a quality system that controls every batch from incoming wire to final packaging.
We offer two primary head styles to match your fastening requirements:
Thread forms include standard self-tapping and T17 (high-low) designs for reduced driving torque and improved pull-out in thin materials. Tips are sharp-pointed for tapping, or drill-pointed when pre-drilling is not desired.
| Configuration | Typical Use | Material Options |
|---|---|---|
| Standard Hex Head, Sharp Point | Roofing sheets, light steel framing | Carbon steel, stainless steel |
| Hex Flange Head, Self-Tapping | Metal-to-metal fastening, equipment assembly | Carbon steel, stainless steel |
| Hex Head, T17 Thread | Timber and chipboard, reduced splitting | Carbon steel, stainless steel |
| Hex Socket Head, Cutting Groove | Concrete and masonry anchoring | Carbon steel with special coating |
Hex head self-tapping screws excel where high clamping force and resistance to loosening are critical. In color-steel roofing, they secure sheets to purlins without pre-drilling, saving labor. In light-gauge steel construction, they fasten framing members with confidence. For outdoor installations, we offer coatings like Dacromet for 1000-hour salt spray resistance or powder coating in RAL colors for aesthetic and corrosion protection.
Material selection is key: carbon steel (typically C1022 or equivalent) is hardened and tempered for strength, while stainless steel (A2/A4) provides superior corrosion resistance for coastal or chemical environments. We match the substrate hardness to the screw's case hardness to prevent thread stripping or tip breakage.
Our screws are manufactured to tight tolerances on head dimensions, thread profile, and point geometry. Typical sizes range from #8 to 1/4 inch in diameter, with lengths from 15 mm to 150 mm. Hardness is controlled via Rockwell testing, and case depth is verified through metallographic analysis. We ensure consistent driving torque and pull-out values, validated through in-house testing.
For high-volume projects, we can supply screws in bulk packaging or collated strips for auto-feed screwdrivers, improving installation speed on site.
Quality is embedded in our process: first-piece inspection, in-process patrols, and final ex-factory checks. Our lab uses metallographic polishing machines and Rockwell hardness testers to verify heat treatment. We hold ISO 9001 for quality management, ISO 14001 for environmental responsibility, and ISO 45001 for occupational safety. Every batch is traceable, and we provide material certificates and test reports upon request.
We understand that off-the-shelf fasteners don't always fit unique applications. Our engineering team can customize head type, thread pitch, point style, length, and coating. Whether you need a specific RAL color for branding or a special thread for composite materials, we collaborate to develop a solution that meets your performance targets.
We also support private labeling and custom packaging, ensuring your supply chain remains efficient.
To prepare an accurate quotation and sample, please provide:
With this information, we can propose the most cost-effective configuration without compromising performance.
Proper installation is essential for optimal performance. We provide technical guidance on recommended drill speeds, torque settings, and pilot hole requirements when necessary. Our screws are designed for reliable service with minimal maintenance, but we advise periodic inspection in high-vibration environments. Our team is available for post-sale support, including troubleshooting and replacement parts.
We offer a range of packaging options: from small boxes for retail to bulk cartons or pallets for industrial use. Our export experience ensures secure packing for sea freight, with monthly shipments of 40-50 containers to Australia and regular deliveries to Europe and Japan. Lead times are confirmed at quotation, and we provide tracking information for every order.
Q: What is the difference between hex head self-tapping and self-drilling screws?
A: Self-tapping screws require a pilot hole in metal, while self-drilling screws have a drill point that eliminates pre-drilling. We offer both; choose based on your substrate and speed requirements.
Q: Can you match a specific coating color?
A: Yes, we offer powder coating in RAL colors and other finishes. Provide the RAL code or a sample, and we'll match it.
Q: What is your minimum order quantity?
A: MOQ varies by size and finish, typically starting at 50,000 pieces for standard items. Custom products may require higher quantities.
Q: Do you provide samples for testing?
A: Yes, we supply samples for evaluation. Shipping costs are usually borne by the customer, but we can discuss for large orders.
Q: How do you ensure consistent quality in large shipments?
A: Our quality system includes first-piece inspection, in-process checks, and final random sampling per ISO standards. We also provide batch test certificates.
Q: Can you help with custom packaging and labeling?
A: Absolutely. We support custom boxes, labels, and barcodes to meet your retail or inventory requirements.
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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