Self-Drilling Roofing Screw with EPDM Washer
Head Type：Hex Washer Head
Thread Type：Coarse Thread
Material Options：Carbon steel /Stainless steel（304/316）
Finish / Coating：Ruspert/Zinc/Magni
Complies with: EN ISO 4042, RoHS, REACH
Applications：
- Fixing metal roofing and wall cladding sheets to steel substructures.
- Suitable for profiled steel sheets, sandwich panels, and thin-gauge metal roofing systems.
- Designed for use in residential, commercial, and industrial roofing applications.
- EPDM washer provides reliable weather sealing against rainwater and moisture ingress.
This self-drilling roofing screw is specifically designed for secure and weather-tight fastening of metal roofing systems to steel supports, ensuring long-term durability and corrosion resistance in exterior applications.
| Size | Length (inch) | Length (mm) | Dia (mm) | Drill Tail |
|---|---|---|---|---|
| SDM 10–16 × 20 | 3/4″ | 20 | 4.8 | #2 |
| SDM 10–16 × 25 | 1″ | 25 | 4.8 | #2 |
| SDM 10–16 × 32 | 1-1/4″ | 32 | 4.8 | #2 |
| SDM 12–14 × 25 | 1″ | 25 | 5.5 | #3 |
| SDM 12–14 × 38 | 1-1/2″ | 38 | 5.5 | #3 |
| SDM 14–14 × 38 | 1-1/2″ | 38 | 6.2 | #3 |
| SDM 14–14 × 50 | 2″ | 50 | 6.2 | #3 |
| SDM 14–14 × 75 | 3″ | 75 | 6.2 | #3 |