• info@tjlituo.com
  • Xiqing District, Tianjin, China
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Hex Head Self Drilling Screw

  • Material: C1022 with hardened.
  • Standard: ISO15480, DIN7504.
  • Head type: hex washer head, hex flange head.
  • Finish: white/yellow/blue zinc coated, hot-dipped galvanized, black oxidized.
  • Assembling: steel bonded washer, stainless steel bonded washer, PVC washer, stainless steel hex cap, umbrella-type washer, nylon cap.
  • Diameter: 3.5mm – 6.3mm.
  • Length: 13mm – 200mm.
  • Certification: CE
  • Features
    • Made of hardened carbon steel, the screws offer strong pullout strength to hold the roofing sheets.
    • Sealing washers help against water penetration.
    • Commonly with corrosion coating.
    • Different points for different applications.
    • Sharp points for easy to screw in and damage a little.
    • Drill points for screw-in hard metal structure.
    • Various colors of paint on heads for specific applications.
    • Can be drilled near the edge of roofing sheets.
    • Long life service.

We can also negotiate according to the customer’s requirements.

Please refer to the video regarding this product

Application
Roofing screws are designed specifically for all kinds of roofing applications. With a variety of types of products and good quality, our Roofing screws will provide you the best solution for fastening different kinds of roofing structures.

  • Commonly used to fasten metal, plastic, and fiberglass roofing sheets to metal or wood structures: the roofing screws with drill points for metal structures and the ones with sharp points for wood structures.
  • Ideal for fastening the overlap roofing sheets.

 

Installation Steps

  1. Choose the proper size of roofing screws.
  2. Install a correct sized driver bit for the heads of your roofing screws into the drill.
  3. Set the roofing sheet into the desired location.
  4. Install the roofing screws on the top of the corrugation or the high ridges only. So the water will run off and down the lower parts of the roof.
  5. Start the drill, Press the drill button, and drill the roofing screw in the roofing sheet and base materials until the metal washer firmly against the roof sheet.