Countersunk Head Self-Drilling Screws

Countersunk self-drilling screws are widely used in furniture manufacturing, architectural decoration, automobile manufacturing and other fields. Its design feature is that it combines self-drilling and self-tapping functions, and can directly form threaded holes on the surface of the material and complete the fixation without pre-drilling, thereby simplifying the installation process and improving construction efficiency.
This product complies with international standards DIN 7504P, ISO 15482 and ASME/ANSI B18.6.3, ensuring the high quality and reliability of the product. In terms of materials, a variety of options are provided, including C1022A carbon steel, SUS410, SUS304 and SUS316 stainless steel, etc., to meet the needs of different scenarios. The specifications cover various sizes from ST3.5 to ST6.3 and 6# to 1/4", suitable for substrates of different thicknesses.
In terms of surface treatment, the product provides a variety of options, including passivation, galvanizing, nickel plating, blackening, head spraying Dacromet, Hot Rust and Laspert coatings. These treatments not only enhance the anti-corrosion performance of the product, but also improve the appearance quality, making it more durable and beautiful.
Countersunk self-drilling and self-tapping screws have the following advantages:
Efficient and convenient: No need to pre-drill, threaded holes can be directly formed on the surface of the material and fixed.
Various materials and specifications: Carbon steel or stainless steel materials can be selected according to needs, and a variety of specifications and sizes are provided to adapt to different application scenarios.
Diversified surface treatment: Passivation, galvanizing, nickel plating and other surface treatment methods are provided to meet the anti-corrosion needs in different environments.
Wide applicability: It is suitable for furniture manufacturing, architectural decoration, automobile manufacturing and other fields, especially for high-strength load-bearing parts and occasions with high corrosion resistance requirements.