Composite decking hidden fasteners provide a secure, discreet fixing solution that delivers a clean, screw-free deck surface. Designed to work with grooved composite decking boards, these fasteners lock boards firmly in place while allowing for natural expansion and contraction, helping to maintain long-term performance and appearance.
This listing includes three hidden fastener options – TC1, TC2 and TC5, allowing you to select the correct clip type to suit your decking profile and installation requirements. Each fastener type is engineered for strength, durability and ease of installation, making them suitable for both professional installers and DIY projects.
By fixing through the side grooves rather than the board face, hidden fasteners create a smooth, modern finish with no visible fixings, reducing the risk of splitting and improving overall deck aesthetics.
Recommended Spacing & Coverage
• One hidden fastener is required at every joist intersection
• Typical joist spacing: 300mm–400mm centres (follow decking manufacturer guidelines)
• Average coverage: 20–25 clips per m², depending on board width and joist spacing
• Starter clips are required for the first row of boards
• A fixing clip is needed on both sides of every board joint
(Exact quantities may vary depending on decking layout and board size.)
Key Benefits
• Creates a clean, screw-free decking surface
• Designed for grooved composite decking boards
• Allows natural board expansion and contraction
• Strong, secure fixing for long-term stability
• Helps prevent board movement and uplift
• Quick and simple installation
• Suitable for residential and commercial decking projects
Available Options
• TC1 Hidden Fasteners – for compatible grooved composite boards
• TC2 Hidden Fasteners – for alternative decking groove profiles
• TC5 Hidden Fasteners – for specific composite decking systems
Product Specifications
• Product Type: Hidden decking fasteners
• Compatibility: Grooved composite decking boards
• Fixing Method: Side-groove concealed fixing
• Application: Composite decking installations
• Use: Deck boards, platforms, terraces and outdoor living spaces
