Anhui Linghong Hardware Technology Co., Ltd. is China Custom Heavy Duty Self Drilling Screws Manufacturers and Metal-To-Metal Self Drilling Metal 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 Zinc Plated Self Drilling 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 professional Self-drilling Screws manufacturer and supplier based in China. We produce a complete range of self-drilling screws, also known as tek screws, that combine drilling, tapping, and fastening in one operation. Our screws eliminate the need for pre-drilling, reducing installation time and labor costs across construction, metal fabrication, and industrial assembly projects.
With over 80 sets of production equipment and a monthly capacity of approximately 500 tons, we supply consistent volumes to distributors, contractors, and OEMs. Our factory follows ISO 9001, ISO 14001, and ISO 45001 management systems, and we control quality from incoming wire to final packaging.
We offer self-drilling screws in various materials, head styles, and drive types to match your specific application. The table below summarizes the main categories we manufacture.
| Product Type | Material Options | Typical Applications |
|---|---|---|
| Carbon Steel Self-Drilling Screws | 1022A, 10B21, with zinc, Dacromet, or Ruspert coatings | Metal-to-metal fastening in steel framing, HVAC, and general construction |
| Stainless Steel Self-Drilling Screws | 410, 304, 316 stainless steel | Corrosive environments, outdoor structures, marine, and food processing equipment |
| Bugle Head Self-Drilling Screws | Carbon steel or stainless steel | Drywall to steel studs, gypsum board, and wood paneling |
| Hex Head Self-Drilling Screws | Carbon steel, stainless steel | Structural steel, roofing, and heavy-gauge metal connections |
| Countersunk Head Self-Drilling Screws | Carbon steel, stainless steel | Applications requiring a flush finish, such as metal cladding and panels |
| Pan Head Self-Drilling Screws | Carbon steel, stainless steel | General sheet metal, electrical boxes, and light fabrication |
| Wafer Head Self-Drilling Screws | Carbon steel, stainless steel | Roofing and cladding where a larger bearing surface is needed |
| Button Head Self-Drilling Screws | Carbon steel, stainless steel | Low-profile fastening in automotive, appliances, and furniture |
Self-drilling screws are designed for metal-to-metal fastening, but they also work well in wood and some plastics. The drill point creates its own hole, so you can drive them directly into steel up to 6 mm thick (for carbon steel) without pre-drilling. For thicker or harder steel, we recommend pre-drilling or using a screw with a larger drill capacity.
We manufacture self-drilling screws in nominal diameters from ST2.9 to ST6.3, with lengths tailored to your joint thickness. Our screws undergo cold heading, carburizing, and quenching to achieve a balance of hardness and toughness. The drill point is sharp and wear-resistant, and the threads are designed for chip evacuation and strong engagement.
For demanding applications, we can supply screws with reduced shank, wings for wood-to-metal connections, or EPDM washers for weatherproof sealing. We also offer various drive types—Phillips, Pozidriv, square, hex, and Torx—to match your installation tools.
Our quality team performs first-piece inspection, in-process patrol inspection, and final ex-factory inspection. We use precision instruments such as metallographic polishing machines and Rockwell hardness testers to verify hardness, case depth, and coating thickness. Each batch is traceable, and we provide material certificates and test reports upon request.
We are certified to ISO 9001, ISO 14001, and ISO 45001, reflecting our commitment to quality, environmental, and occupational health standards. Our export experience includes regular shipments to Australia, Europe, and Japan, ensuring our packaging and documentation meet international requirements.
As a factory, we support custom specifications, including non-standard lengths, special head designs, custom coatings, and private labeling. Our engineering team works with you to confirm the correct drill point, thread pitch, and hardness for your substrate. We can also provide samples for testing before mass production.
For large projects, we coordinate production schedules to meet your delivery deadlines. Our monthly capacity of 500 tons allows us to handle both container orders and smaller batch requirements efficiently.
To prepare an accurate quotation and production plan, please provide the following details:
Q: Can self-drilling screws be used in wood?
Yes, they can be driven into wood without pre-drilling, but for wood-to-metal connections, screws with wings help prevent wood splitting and improve drilling performance.
Q: What is the maximum steel thickness you can drill?
Our standard carbon steel self-drilling screws can drill through steel up to 6 mm thick. For thicker materials, we recommend using a screw with a larger drill point or pre-drilling.
Q: Do you offer stainless steel self-drilling screws with a passivated finish?
Yes, we can supply stainless steel screws in grades 410, 304, and 316, with or without additional passivation or coatings, depending on your corrosion resistance requirements.
Q: What is the typical lead time for a container order?
Lead time depends on the specification and quantity. For standard sizes, we can often ship within 2-3 weeks after order confirmation. Custom items may require additional time for tooling and production.
Q: Can you provide samples before mass production?
Yes, we offer samples for pre-production testing. Please contact us with your requirements, and we will arrange sample delivery.
+86 15856352820
malingfei@linghongscrew.com
No. 56, Baishizhan Road, Economic Development Zone, Langxi County, Xuancheng City, Anhui Province, China
English
Español
Deutsch
عربى
