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Hex Head Self-drilling Tek Screws

  • Patented tip
  • Steel to steel assembly
  • Steel to timber fix
  • Roofing fastening
  • Color head painted
  • Milling point self-drilling screw has better performance than traditional self-drilling screw. The drilling point is made by precise milling cut. In our research, milling point self-drilling screw has better drilling speed, cutting ability and pull-out force and it show an excellent consistency, less pressing force and shorter drilling time.
    SEC also have the milling point product for hard timber application.

  • DIN, IFI, ISO, ASTM, ASME or according to customer's drawing and samples.
    Material: Stainless steel: 304, 316, 410
                       Carbon steel: 1022, 1018
                       Alloy steel: 10B21, 10B33
    Gauge: #8 - #14, M4 – M6.3
    Length: 1/2’’- 10’’, 12mm – 250mm
    Drilling point: #1-#5

    Self drilling screws are very easy to install, but con- tractors still encounter challenges like penetration speed or functioning problems. Therefore, it is our goal to eradicate those challenges by making self-drilling screws that are faster at drilling and are more stabilized.

    Easy to use
    SEC's Nick Point self-drilling tip contains a small indent slightly on the side of the screw tip. It has been verified through many experiments and comparisons to have a consist shorter drilling time. Furthermore, our feedback from construction staffs indicating an effortless quick drilling speed.

    Stable quality
    Our self-drilling screws have a better penetration point that is slip resistant. Besides, a single SEC self-drilling screw can be redrilled 5 times without affecting performance.

    Suitable coating
    Depending on the environment at which your self-drilling screws are applied, we are able to coat these products according to C1-C4 specifications or according to your own customized specifications.own customized specifications.

    Any customization
    The SEC self-drilling screw can be matched with any EPDM size or steel bonded washer. We can also paint the screw head to the color of your roof or wall.

    Common Applications

    Steel Truss

    Metal siding

    Resistance to water, the ability to sustain high temperatures, along with the capability to fix various panels, e.g, thin panels, steel frames, and fiber laminates are the most essential components to constructing roofs and walls. Consequently, advancement in manufacturing technology must exist to meet these criteria. With a professional team focusing on research and development, we have developed such self drilling screws to meet these standards.

    Special Tip
    The SEC self-drilling screw is equipped with a thread-to-tip design. This allows the screw to be easily penetrated into the iron plate and at the same time, reduce the chances of breaking the plate.

    Nick Point
    The SEC self-drilling screws uses a Nick Point Tip - a small indent slightly to the side of the screw tip, it is tested in our lab and by construction staffs to be consistent and very efficient at shortening the drilling time.

    Asymmetric Thread
    The special angle design, as well as the different pitches in the upper and lower sections can also be found in our self-drilling screws. This creates a pull-out resistance that allows the screw to firmly clinch the gaps between the plates.

    Straight Knurl
    The straight knurl can help expel the iron fillings and enlarge the hole without breaking it. Additionally, it can avoid stretching the rod diameter and reducing the risk of corrosion.

    Common Applications

    Steel Truss

    Metal siding

    Highest corrosive