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Exterior fixings engineered for durable, weather-resistant roofing performance, TIMCO Self-Drilling Fibre Cement Board Screw. Peace of mind for roofers and DIYers who need dependable fixings that withstand coastal conditions. Will these fixings match the sheets and detailing on your project?
⚡ At a Glance
- • Corrosion Resistance: Exterior plating resists 1,000 hours of salt-spray testing
- • Best for: Securing Big 6 roofing sheets and exterior fibre-cement panels
- • Not ideal for: Interior decorative joinery where exterior-grade fixings are unnecessary
Exterior plating gives reliable, durable corrosion resistance rated to 1,000 hours salt-spray. Wings ream enlarged holes in roofing sheets to allow for thermal expansion while securing cladding.
Long-lasting exterior protection, with corrosion-resistant exterior plating
A specialised exterior plating is applied to the screw finish and has been tested to withstand 1,000 hours of salt-spray exposure. The silver coating resists common coastal corrosion mechanisms.
Fewer replacements and less maintenance for roofs in exposed locations, giving confidence that fixings remain serviceable over time.
Secure anchorage in corrugated sheets, thanks to the self-drilling tip
Self-drilling geometry lets the screw form its own hole through roofing sheets and underlying substrates, removing the need for a separate pilot hole. Thread form engages material quickly for positive bite.
Faster installs and reliable pull-out resistance, ideal when working on ladders or in variable weather conditions.
Reduced sheet stress on overlaps, with wings that ream enlarged holes
Wings on the fastener ream an enlarged hole through roofing sheet material before thread engagement, allowing the sheet to move slightly relative to the fixings. This reduces stress transfer from thermal movement.
Helps prevent buckling and split sheets where thermal expansion occurs, maintaining roof plane integrity over time.
✨ The 4 Key Reasons for TIMCO Self-Drilling Fibre Cement Board Screw
- Self-drilling tip - Cuts installation time by removing the need for pilot holes
- BAZ washer - Larger bearing surface reduces pull-through on thin sheets
- 6.3 x 130 size - Reaches through overlaps and thick battens for secure fixing
- Silver exterior plating - Enhances longevity in saline or exposed environments
📋 Technical Details at a Glance
- Category: Roofing fixings
- Brand: TIMCO
- Type: Self-drilling screw for fibre cement board
- Size: 6.3 x 130 mm
- Washer: BAZ washer
❓ Frequently Asked Questions
Q: Are these screws suitable for exterior use?
A: Yes, exterior plating provides a corrosion-resistant finish rated to 1,000 hours of salt-spray, making them suitable for exposed locations.
Q: Will the screws allow for thermal movement in roof sheets?
A: Yes, wings ream an enlarged hole in the roofing sheet to allow for expansion, reducing stress from thermal movement.
Q: Can these fixings be used with Big 6 roofing sheets?
A: Yes, the fasteners are frequently used to secure Big 6 roofing sheets, making them appropriate for common corrugated profiles.
🏆 Our Verdict
Roofers and experienced DIYers who install exterior fibre-cement and metal roofing will find these fixings well suited to exposed conditions. The combination of self-drilling geometry, BAZ washer and a plating rated to 1,000 hours salt-spray gives robust, low-maintenance performance. While cost depends on supplier, long-term value comes from fewer re-fixes and improved roof durability.
