Anhui Linghong Hardware Technology Co., Ltd. is China Custom Countersunk Head Self-Drilling Screws Manufacturers and Countersunk Head Self-Drilling 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 Countersunk Head 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 China-based manufacturer and supplier of Countersunk Head Self-Drilling Screws, combining drilling, tapping, and fastening in one operation. Our screws feature a 90° tapered head that sits flush with the workpiece, eliminating protrusions and ensuring a clean, safe surface. We produce these fasteners for applications where surface flatness and corrosion resistance are critical, such as metal roofing, cladding, electrical enclosures, and light-gauge steel framing.
With over 20 years of fastener experience and a production facility in Anhui, we supply both standard and custom configurations. Our monthly capacity of 500 tons and ISO 9001, 14001, and 45001 certified processes ensure reliable delivery and consistent quality for global B2B projects.
We offer countersunk head self-drilling screws in several head styles and drive types to match your assembly method and material stack-up. The table below outlines our standard options and typical uses.
| Product Type | Head / Drive | Typical Applications |
|---|---|---|
| Cross Recess Countersunk Head 8-Rib Self-Drilling Screw | Countersunk 90°, Phillips/Cross, 8-rib under head | Metal-to-metal fastening in roofing, cladding, and steel framing |
| Cross Recess Countersunk Head Self-Drilling Screw | Countersunk 90°, Phillips/Cross, standard point | General sheet metal, electrical enclosures, and decorative panels |
| Phillips Countersunk Head 8-Rib Self-Drilling Screw | Countersunk 90°, Phillips, 8-rib under head | Applications requiring enhanced torque transfer and reduced cam-out |
| Cross Recess Countersunk Head Self-Drilling Screw with Wing | Countersunk 90°, Cross, wings on shank | Fastening wood-to-metal or where wings help ream the top layer |
All types are available in carbon steel with zinc plating or stainless steel (304) for corrosion resistance. We also produce custom lengths, diameters, and point styles to meet specific project requirements.
Each countersunk self-drilling screw is engineered to drill its own pilot hole and form mating threads in thin-gauge metal up to a certain thickness. Our team selects the appropriate drill point geometry and hardness based on your material type and thickness. For example, a standard point suits steel up to 3 mm, while a heavier point may be needed for thicker sections.
We offer several configuration options:
Our engineers review your application to recommend the optimal combination, ensuring reliable installation and long-term performance.
Quality is built into every batch. We operate a professional quality management team and use precision instruments such as metallographic polishing machines and Rockwell hardness testers. Our process includes first-piece inspection, in-process patrol inspection, and final ex-factory inspection. We verify hardness, case depth, thread profile, and coating thickness to ensure consistent performance.
Our factory is ISO 9001, ISO 14001, and ISO 45001 certified, reflecting our commitment to quality, environmental responsibility, and occupational safety. We also conduct salt spray testing on plated screws to confirm corrosion resistance when required.
Countersunk self-drilling screws are designed for high-speed installation with standard power drills or automated screwdriving systems. The flush head prevents snagging and allows subsequent processes like painting or cladding to proceed without interference. For automated assembly lines, we can supply screws in collated strips or bulk packaging to match your feed system.
We provide technical guidance on optimal drilling speed, torque settings, and material thickness limits to prevent point breakage or over-torquing. Our team can also recommend the correct screw length to ensure adequate thread engagement while avoiding protrusion.
To prepare an accurate quotation and sample, please provide the following details:
With this information, we can recommend the most cost-effective solution and provide samples for your testing before mass production.
We understand that packaging affects your handling efficiency. We offer a complete packaging system, including small boxes, cartons, pallets, and custom labeling. For export, we use seaworthy packaging to protect against moisture and damage. Our monthly export volume of 40-50 containers to Australia and 10 containers to Europe/Japan demonstrates our logistics capability.
Lead times depend on order quantity and customization level. Standard sizes are often in stock, while custom orders typically require 2-4 weeks after sample approval. We provide clear delivery schedules and update you throughout production.
A self-drilling screw has a drill point that creates its own pilot hole, eliminating the need for pre-drilling. A self-tapping screw requires a pre-drilled hole. Countersunk head self-drilling screws combine drilling and tapping with a flush finish, ideal for metal-to-metal applications.
Yes, we offer Torx drive as an option. Torx provides better torque transfer and reduces cam-out compared to Phillips, especially in high-torque applications. Please specify your drive preference in your inquiry.
Standard self-drilling points can typically penetrate up to 3 mm (about 1/8") of steel. For thicker materials, we may recommend a different point geometry or a pre-drilled hole. We will advise based on your specific material stack-up.
Yes, we provide free samples for standard sizes. For custom specifications, samples are available after we review your requirements. Shipping costs are usually covered by the customer, but we can discuss this for large orders.
Our factory is certified to ISO 9001 (quality management), ISO 14001 (environmental management), and ISO 45001 (occupational health and safety). These certifications ensure consistent quality and responsible manufacturing practices.
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
English
Español
Deutsch
عربى
