These 6mm plastic hidden decking fasteners are recommended for standard outdoor composite decking installations. They are designed to fit neatly into the side groove of compatible composite decking boards, helping create a clean, screw-free surface while maintaining a consistent gap between each board.
For outdoor use, composite decking boards need room to expand and contract with changes in temperature, moisture and weather. The built-in 6mm spacing helps support proper drainage, ventilation and natural board movement, making plastic fasteners the preferred fixing choice for most external decking projects.
Recommended for Outdoor Composite Decking
Vigo Home recommends these 6mm plastic hidden fasteners for external composite decking installations, including gardens, patios, terraces and outdoor living spaces.
Unlike rigid stainless steel clips, plastic fasteners allow a more suitable board gap for outdoor conditions. This helps reduce the risk of restricted expansion, poor drainage, board stress and cracking caused by unsuitable fixing methods.
For most outdoor decking projects, these plastic fasteners should be used instead of stainless steel clips.
Product Features
Each bag includes 100 plastic hidden fasteners for compatible grooved composite decking boards.
The fasteners sit between the boards and secure into the side groove, leaving no visible screws through the top surface. This creates a clean, modern decking finish while keeping board spacing consistent across the installation.
The plastic construction is corrosion-free and will not rust, making it suitable for external use in UK weather conditions.
Suitable For
These fasteners are suitable for Vigo Home grooved composite decking boards and most compatible grooved decking profiles.
They are ideal for outdoor decking areas, patios, garden spaces, terraces, residential projects, landscaping jobs and trade installations where correct board spacing is required.
Installation Guidance
Place one hidden fastener on each joist, seated into the side groove of the decking board. Secure the fastener using a suitable exterior-grade screw, then slide the next board into position and continue the run.
Do not overtighten the screw. Composite decking requires suitable spacing to allow for expansion, contraction, drainage and ventilation.
Screws are not supplied. Please use suitable exterior-grade screws for your joists or subframe.
Quick-Fit Guide
Lay and align the first decking board in position.
Place one 6mm plastic hidden fastener on each joist, seated into the board groove.
Screw the fastener down until secure, without overtightening.
Slide the next board firmly into place and continue the installation.
Repeat across the full decking area, keeping the spacing consistent.
Delivery & Collection
Vigo Home offers free pallet delivery on orders over £1,500.
For orders below £1,500, pallet delivery charges are calculated from our Desborough warehouse, NN14 2SR:
Under 30 miles: £30
30–60 miles: £60
60–80 miles: £80
Over 80 miles: £100
All deliveries are dispatched from our Northamptonshire warehouse and scheduled through our delivery network.
Same-day click & collect is also available from:
Unit 2A, Millbuck Industrial Estate, Desborough, Northamptonshire, NN14 2SR, United Kingdom
About Vigo Home
Vigo Home supplies composite decking, fencing, cladding and accessories directly from our Northamptonshire warehouse.
Our decking boards, trims and fixings are selected to work together as a complete system, helping homeowners, landscapers, builders and trade customers achieve a cleaner, safer and longer-lasting outdoor decking installation.