DIN 7504 K Self-Drilling Trapezoidal Roof Screw is a specialized type of screw used for the installation of trapezoidal roofing materials. Thanks to its self-drilling tip design, this screw can drill directly into the material, allowing for fast and efficient installation without the need for pre-drilling. Manufactured in accordance with the DIN 7504 K standard, these screws are typically made from durable materials such as stainless steel or galvanized steel, making them resistant to corrosion. The trapezoidal roof screw provides a secure and sturdy connection in roofing applications, and its specially designed head minimizes the risk of slipping during tightening. These screws are also known for their waterproofing capabilities, ensuring long-lasting and reliable installation on roofs. DIN 7504 K screws are the ideal solution for those seeking speed and durability in roofing applications.
| Boy/ Ø | ST3,9 | ST4,2 | ST4,8 | ST5,5 | ST6,3 |
|---|---|---|---|---|---|
| dp | 3,1 | 3,6 | 4,1 | 4,8 | 5,8 |
| s | 5,5 | 7 | 8 | 8 | 1 |
| c | 0,6 | 0,9 | 0,9 | 1 | 1 |
| k max. | 3,45 | 4,25 | 4,45 | 5,45 | 16,45 |
| dc max. | 8,3 | 8,8 | 10,5 | 11 | 13,2 |
| e min. | 5,96 | 7,59 | 8,71 | 8,71 | 10,95 |
| ⬢ | 5,5 | 7 | 8 | 8 | 10 |