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China Countersunk Slotted Head Screws Manufacturer, Supplier, Factory

When it comes to fastening solutions that offer a smooth, flush finish, Countersunk Head Screws are the industry standard. Our Countersunk Head Screws are engineered for applications where a protruding screw head is not acceptable, providing a secure and aesthetically pleasing result. Specifically, our Countersunk Slotted Head Screws feature the classic single drive slot, making them a timeless and reliable choice for both traditional and modern assembly tasks where tool compatibility and a low-profile head are paramount.


Countersunk Slotted Head Screws are meticulously manufactured to meet stringent quality standards. The design of the Countersunk Slotted Head Screws allows the head to sit perfectly flush with or below the surface of the material being fastened. This eliminates any potential snagging points and creates a clean, professional appearance. The slotted drive is universally recognized and can be installed with a standard flat-head screwdriver, ensuring ease of use in a wide range of scenarios, from woodworking and metal fabrication to electronics and general machinery.

Key Specifications of Countersunk Slotted Head Screws

  • Head Style: Countersunk (Flat Head)
  • Drive Type: Slotted
  • Standards: Compliant with DIN 963 / ISO 2009
  • Materials: Available in Steel, Stainless Steel (A2/A4), and Brass
  • Finishes: Zinc Plated, Black Oxide, Plain, and Passivated
  • Point Style: Sharp Point for easy thread starting

Detailed Product Dimensions (Common Sizes)

Nominal Size (M) Head Diameter (mm) Head Height (mm) Slot Width (mm) Slot Depth (mm)
M3 6.0 1.7 0.6 1.0
M4 8.0 2.2 0.8 1.4
M5 9.5 2.7 1.1 1.7
M6 11.5 3.2 1.3 2.0
M8 15.0 4.2 1.8 2.6

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