Corroshield® Roofing Screws & Accessories
We supply the full Corroshield® range specifically matched to our roofing products—tested for pull-out, corrosion resistance and long-term performance. Choose the correct fastener for timber purlins, thin steel, or thick steel structures.
Screw Selection Guide
| Substrate | Typical Screw | Common Lengths | Washer |
|---|---|---|---|
| Timber | Hex washer head, self-drilling (for timber) | 65–90 mm | EPDM bonded |
| Thin Steel (≤1.2 mm) | Hex washer head, self-drilling (light steel) | 22–55 mm | EPDM bonded |
| Thick Steel (≥1.6 mm) | Hex washer head, self-drilling (heavy steel) | 35–65 mm | EPDM bonded |
| Side-laps | Stitching screws | 16–20 mm | Low-profile washer |
*Lengths and head types vary by profile and insulation build-up. We’ll confirm exact specs on your quote.
Accessories
- Rivets, stitching screws
- Color-matched caps
- Seal washers (EPDM)
- Driver bits & magnetic sockets
HOW MANY SCREWS DO I NEED?
Method: Sheets × Length = LM → LM × Coverage (m) = m² → m² × 7 = screws (round up to boxes of 100)
Notes: Guideline only. Allow for wastage, overlaps, wind zones, fixing patterns and project specifics. We recommend rounding up and confirming with our team.