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Carbon Steel Self-Drilling Screws

Carbon Steel Self-Drilling Screws

Carbon steel self-drilling screws, also known as tek screws or self-tapping self-drilling screws, are highly efficient fasteners that integrate drilling, tapping, and fastening into one. They can be installed directly without the need for pre-drilling, which not only offers low costs and outstanding strength but also drastically improves construction efficiency to suit various scenarios. Their drill tails are sharp and wear-resistant, and the threads feature a progressive design with strong self-locking performance. Available in a wide variety of head styles, they can accommodate all types of operation tools. The material is selected from high-quality carbon steel, such as 1022A, and undergoes cold heading, carburizing, and quenching, as well as zinc plating or Dacromet anti-rust treatments to balance hardness and toughness. With a nominal diameter ranging from ST2.9 to ST6.3 and a tensile strength of ≧450MPa, these screws possess the advantages of high efficiency, cost-effectiveness, reliable fastening, and complete specifications. They are suitable for low-carbon steel plates, aluminum alloys, and other substrates with a thickness of ≦6mm, and are widely applied in fields like construction, home appliances, and industrial manufacturing, while not being suitable for high-strength steel and concrete.

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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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