Hex Countersunk Self-Drilling Composite Decking Screws 5.2mm x 63mm, 350 Pa
£40.00
Includes VAT where applicable. Delivery calculated at quote stage.
These specialised hex countersunk screws are engineered specifically for fastening composite polymer and timber decking boards. They solve the common mushroom effect that occurs when standard wood scr
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SKU: NSDC-FASTENMASTER-TRAPEASE-HEX-COUNTE
Description Reviews (0) Q&A
These specialised hex countersunk screws are engineered specifically for fastening composite polymer and timber decking boards. They solve the common mushroom effect that occurs when standard wood screws displace material during installation. Designed for both domestic landscaping and professional builds, these fasteners provide a secure hold in various weather conditions. The pebble-coloured coating ensures the screw heads blend into common composite tones. It is a practical solution for anyone seeking a clean, level finish on modern outdoor flooring.
These fasteners are suitable for a wide range of UK outdoor projects, from small residential patios to large-scale commercial walkways. They perform reliably on multi-level terraces or ramps in public spaces where heavy footfall is expected. Because they resist corrosion from ACQ and copper azole wood treatments, they are ideal for damp British climates. Whether you are installing a deck beside a swimming pool or a timber boardwalk in a coastal garden, these screws provide the necessary durability. They work well in high-moisture environments found across the country.
Installation is straightforward because these screws are self-drilling, which means no pre-drilling is required into your boards. You will need a compatible driver bit to engage the anti-strip Torx TTAP drive system effectively. This specific drive system helps prevent the head from stripping while you drive the screw home. The hex countersunk design allows the head to sit flush with the surface of the material. Once driven, the finish remains neat and level across the entire installation area.
Each screw measures 5.2mm in diameter and 63mm in length. They feature a pebble-coloured, anti-fade coating designed to match standard composite board colours. The hex countersunk head is built to prevent material displacement, while the Torx TTAP drive system ensures high torque transfer. These fasteners are highly resistant to corrosion from copper azole and ACQ treatments. This single option is sold in packs for a total price of £40.00.
Frequently asked questions
Do I need to drill pilot holes before using these screws?
No pre-drilling is required because these are self-drilling fasteners. They are designed to cut through the composite or timber material efficiently, which saves significant time during a large installation project.Will the screw heads fade or change colour over time?
The screws feature an anti-fade paint coating specifically designed to match common composite tones. This ensures the pebble-coloured heads remain discreet and blend with your decking even after exposure to UV rays.Can I use these screws with treated timber?
Yes, these fasteners are built to withstand ACQ and copper azole wood treatments without corroding. This makes them a reliable choice for both composite boards and various types of pressure-treated timber.How do these prevent the mushroom effect?
Standard screws often displace material upwards when driven into polymer boards, creating a raised ridge. The specialised design of these hex countersunk screws prevents this displacement to ensure a perfectly flush finish.
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