Description
These high-performance screws offer strength, ease of use, and long-term durability, ensuring your roofing projects can withstand the UK’s challenging weather conditions. Available in boxes of 100, they come in various lengths to accommodate different timber depths and sheet thicknesses, helping you achieve professional results every time.
Benefits of Sheet to Timber Tek Screws
- Durability & Strength: Specially designed threads provide maximum grip in timber, ensuring a stable connection and reducing the risk of pull-out.
- Corrosion Resistance: With a premium coating tested to withstand over 1,000 hours of salt spray, these screws resist rust and degradation, lasting 15-25 years in typical UK conditions.
- Watertight Sealing: Each screw includes a 19mm bonded EPDM washer, creating a reliable seal that prevents leaks and protects against weather damage.
- Efficient Installation: The self-drilling tip allows quick, one-step drilling through thin metal sheets (up to 0.8mm) and into timber, minimising wood splitting and saving time.
- Versatility: Ideal for new builds, renovations, and agricultural projects, these screws work perfectly with corrugated roofing sheets for long-lasting roofs.
- Compliance & Quality: CE marked and compliant with BS EN ISO 10666 standards, ensuring safety and reliability with every use.
Specifications
Our Sheet-to-Timber Tek Screws are crafted for precision and performance. Below are the detailed specs:
Specification | Details |
Diameter | 6.3mm |
Head Type | Hexagonal head for easy driving with standard tools |
Drive Type | Compatible with hex socket drivers |
Material | High-grade steel with advanced corrosion-resistant coating |
Washer | 19mm EPDM bonded washer for superior sealing |
Drilling Capacity | Self-drilling point penetrates up to 0.8mm of steel sheet and timber in one step. |
Thread Design | High/low thread pattern for optimal pull-down force and reduced timber splitting |
Quantity | Sold in boxes of 100 screws |
Compliance | Meets BS EN ISO 10666, CE marked, and aligns with BS 2482:2009 guidelines |
Applications | Ideal for fixing corrugated, box-profile, or tile-effect metal sheets to softwood or hardwood purlins and battens. Not suitable for metal-to-metal or thick steel purlin attachments |
You can also buy sheet-to-sheet roof fixings for joining metal corrugated roofing sheets in overlaps, side laps, end laps, and other metal-to-metal connections (ideal for ridges, flashings, and secure stitching).
FAQs
What are the size and capacity specifications?
We offer a selection of lengths to accommodate various project requirements. The table below outlines available sizes, recommended timber embedment, and suitable applications:
| Length (mm) | Recommended Timber Embedment (mm) | Suitable Sheet Thickness (mm) | Ideal For |
|---|---|---|---|
| 25 | 10-15 | 0.5-0.7 | Shallow purlins, light-duty roofing |
| 32 | 15-25 | 0.5-0.7 | Standard sheds and garages (most popular) |
| 45 | 25-35 | 0.5-0.7 | Deeper battens, medium structures |
| 60 | 35-50 | 0.5-0.7 | Agricultural buildings, thicker timbers |
| 80 | 50-70 | 0.5-0.7 | Heavy-duty installations, large roofs |
| 100 | 70-90 | 0.5-0.7 | Extra-deep supports, industrial applications |
Note: Embedment depths are approximate and depend on timber type (e.g., softwood like pine requires less depth than hardwood). Always ensure at least 20mm penetration for secure hold.
What are Sheet to Timber Tek Screws used for?
These screws are specifically designed to attach metal roofing sheets, such as our corrugated options, directly to timber frameworks. They’re perfect for creating weatherproof roofs on outbuildings, extensions, and temporary structures.
How do I choose the right size?
Select a length that allows for at least 20-30mm embedment into the timber after passing through the sheet. For example, the 32mm size is ideal for standard 38-50mm deep softwood purlins with 0.5-0.7mm sheets.
Are these screws suitable for outdoor use?
Yes, their advanced coating provides excellent corrosion resistance, making them suitable for exposed, wet conditions. The EPDM washer ensures a watertight seal.
Do I need special tools to install them?
No, a standard drill with a hex bit is sufficient. The self-drilling point eliminates the need for pre-drilling in most cases.
Can these be used with metal purlins?
No, these are optimised for timber. For metal-to-metal fastening, consider our alternative screw options.
How many screws do I need per sheet?
Typically, 4-6 screws per square meter, depending on wind load and purlin spacing (max 1.2m apart). Consult building regulations for your project.
Are they environmentally friendly?
Our screws are made from sustainably sourced materials and are fully recyclable, aligning with eco-conscious construction practices.
Which length is most popular?
The 6.3 × 32 mm screw is the best-selling option, delivering optimal holding power by providing 20–30 mm embedment in softwood purlins when fixing 0.5–0.7 mm corrugated roofing sheets, without splitting or protruding through the wood.
How do these screws reduce timber splitting risk?
The single slash point lowers torque, minimizing timber splitting—especially near edges. This allows for smoother installation and preserves wood integrity.
Are these screws for outdoor use?
Yes, they’re designed for exterior use, with a corrosion-resistant coating and an EPDM washer for durability.




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