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Countersunk Head Self-Tapping Screws

Countersunk Head Self-Tapping Screws

Countersunk self-tapping screws, commonly known as flat-head self-tapping screws, are universal fasteners that combine flush, seamless fastening with convenient installation. Their core characteristic is the combination of a standard 90° tapered countersunk head with a self-tapping threaded shank.

Unlike pan-head or round-head screws, the tapered countersunk head can be completely embedded into pre-drilled holes in the workpiece. After installation, the screw head sits flush with the material surface—leaving no protrusions or screw marks. This design ensures both aesthetic appeal and operational safety, effectively preventing issues such as scraping hands, snagging materials, or interfering with assembly. Furthermore, there is no need for decorative caps, making them ideal for high-finish surface applications. The tapered surface ensures uniform stress distribution, providing a more stable connection without cracking wood or thin plastic boards.

The shank features self-tapping threads and a sharp tip, allowing the screw to drill directly into substrates such as wood, plastic, thin sheet metal, and medium-density fiberboard (MDF) without the need for pre-tapping or the use of matching nuts, resulting in efficient and labour-saving installation. They are typically equipped with Phillips or Torx (star) drive recesses, making them compatible with power tools and suitable for automated assembly lines. Available in materials including zinc-plated carbon steel and stainless steel for rust resistance and durability, these screws come in a full range of specifications and are widely used in scenarios requiring high surface flatness, such as panel furniture, appliance casings, electronic housings, interior trim panels, and decorative wood finishes.

About Us
Anhui Linghong Hardware Technology Co., Ltd.

Anhui Linghong Hardware Technology Co., Ltd. was 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.
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!

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