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The Sheet-to-Sheet Tek Screws are high-quality self-drilling fasteners designed for securely fixing overlapping metal roofing and cladding sheets. Ideal for corrugated roofing installations, they create a strong, weatherproof connection that helps structures withstand demanding UK weather conditions.
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Sussex Depote
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Sheet to Sheet Tek Screws are high-quality self-drilling fasteners designed for securely fixing overlapping metal roofing and cladding sheets. Ideal for corrugated roofing installations, they create a strong, weatherproof connection that helps structures withstand demanding UK weather conditions.
Supplied in boxes of 100, these Tek Screws are suitable for both professional contractors and DIY users working on sheds, garages, barns, or larger buildings. Built for durability and ease of use, they are the perfect companion to corrugated roofing sheets, ensuring a reliable and long-lasting finish.
Request a quote today for bulk orders or fast nationwide delivery.
Weatherproof Seal: Bonded EPDM washer prevents water ingress in exposed outdoor conditions.
Fast Installation: Self-drilling tip removes the need for pre-drilling, saving time on site.
Durable Performance: Corrosion-resistant coating delivers a 15–20 year lifespan in UK climates.
Versatile Use: Suitable sheet-to-sheet fixing for DIYers and roofers installing corrugated metal roofing sheets for leak-free roofs.
Great Value: Supplied in boxes of 100, ideal for cost-effective, secure metal-to-metal fixing.
These Tek Screws are engineered for precision and reliability. Below is a detailed overview of their technical specs.
Specification | Details | Considerations | Recommendations |
Diameter | 6.3mm | Ensures a snug fit without stripping | Use with compatible hex drivers for best results |
Length | 22mm / 25mm | Matches overlap depth | Choose 25mm for thicker profiles or extra security |
Material & Coating | Corrosion-resistant steel | Withstands rust in wet UK conditions | Ideal for coastal or high-humidity areas |
Washer Type | Bonded EPDM (8mm) | Provides a watertight seal | Inspect for damage before installation |
Drill Capacity | Up to 1.6mm combined thickness | Self-drills through metal sheets | Avoid over-tightening to prevent washer deformation |
Head Style | Hex (8mm) | Compatible with drills and impact tools | Use low torque settings for precise control |
Compliance | CE marked, BS standards | Meets industry safety requirements | Suitable for professional and certified builds |
This table highlights essential factors to consider when selecting and using our Tek Screws, ensuring optimal performance for your roofing projects.
These screws are specifically designed for fastening overlapping metal sheets in roofing and cladding systems, such as our corrugated profiles. They create secure, leakproof joints for applications such as sheds, agricultural buildings, and garages.
No, the self-drilling 3-point tip allows them to penetrate metal sheets directly, saving time and effort during installation.
They work best with thin galvanised or coated steel sheets with a combined thickness of up to 1.6mm. For timber purlins or thicker materials, consider alternative fasteners from our range.
It depends on the size and overlaps, but a general rule is one screw every 300-500mm along laps. A box of 100 covers approximately 20-30 square meters at standard spacing.
While they are durable, we recommend single-use for optimal sealing. Reusing may compromise the EPDM washer’s effectiveness against water.
A standard power drill or impact driver with an 8mm hex bit is sufficient. Magnetic nut setters can help with handling multiple screws efficiently.
The corrosion-resistant coating and EPDM washer ensure they withstand rain, wind, and temperature fluctuations common in the UK, with an expected service life of over 15 years.
This table helps customers plan screw placement for secure, weatherproof laps on corrugated roofing, reducing common issues like leaks or wind uplift.
| Application / Location | Recommended Spacing | Typical Number per Linear Metre of Lap | Notes / Why It Matters |
|---|---|---|---|
| Side laps (vertical overlaps) | Every 300–500 mm along the overlap | 2–3 screws per metre | Ensures tight seal on sheet edges; closer spacing (300 mm) for high-wind or exposed sites |
| End laps (horizontal overlaps) | Every 300–400 mm along the lap | 3–4 screws per metre | Critical for preventing water ingress at sheet joints; use sealant/tape alongside |
| Flashings / Ridge / Barge | Every 200–300 mm | 4–5 screws per metre | Higher frequency for smaller pieces to maintain alignment and weather resistance |
| General guideline for overlaps | 300 mm average spacing | 3 screws per metre (balanced) | Standard for most UK domestic/agricultural sheds/garages; adjust up for coastal/high-wind areas |
Each box contains 100 sheet-to-sheet Tek screws.
An EPDM washer is a durable rubber seal bonded to the screw, providing long-term weather protection and preventing water ingress.
No pilot hole is required. Simply drive the screw through the overlapping metal sheets using a drill or impact driver. The self-drilling tip penetrates the steel while the EPDM washer forms a secure, watertight seal.
These screws have a 3-drill point and a shorter length, making them suitable for thin metal-to-metal overlaps up to 1.6 mm. Longer screws typically feature 4 or 5 drill points for steel purlins or wings for timber fixing.
No. These are sheet-to-sheet stitching screws only. Using them on timber will damage the drill point and provide little to no holding strength. For wooden applications, use our dedicated timber Tek screws designed for wood-to-sheet fixing.
6.3 × 22 mm: This is the most commonly used size, suitable for standard 0.54 mm metal sheets. It’s ideal for routine roofing and cladding jobs where quick and secure fastening is required.
6.3 × 25 mm: This size works best when the metal sheets have thicker insulation or if you need greater thread engagement to boost security.
For more details or custom advice on integrating these screws with our corrugated roofing sheets, contact our team at West Sussex Scaffolding. We’re here to support your project with expert guidance and reliable supplies.
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