Overview
Self-drilling screws (SDS) have a drill point that cuts its own hole and then forms its own thread, so steel sheet can be fixed in one step without pre-drilling.
Hex washer head screws with a bonded EPDM washer seal roofing and cladding against rain. We stock Corroshield and BDN SDS screws, including heavy-duty series for thick purlins.
Specifications
| Head types | Hex washer, wafer, CSK, pan |
|---|---|
| Sizes | 8 g to 14 g; 16 mm to 150 mm |
| Material | Case-hardened carbon steel, SS 410, bi-metal |
| Finish | Corrosion-resistant coatings, zinc |
| Brands | Corroshield, BDN |
Key features
- No pre-drilling
- EPDM sealing washer
- Heavy-duty series for thick steel
Applications
Roofing & claddingPre-engineered buildingsSolar mountingHVAC ducting
Need a size, grade or finish not listed? We also make special and non-standard parts to drawing. Ask us →
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