Hidden Deck Fasteners, 600 Pack, 6.5 mm Gap Clips

Hidden deck fasteners lock composite decking boards in place for a clean, screw-free surface and consistent 6.5 mm spacing. This 600-piece kit uses durable PP clips and corrosion-resistant stainless steel screws to hold boards securely in outdoor conditions. Designed for fast, repeatable installs, it helps reduce visible hardware and keeps deck lines straight across patios, balconies, and garden builds.

• Delivers a seamless look with concealed fastening and black screw heads that blend into the deck.


• Fits 6.5 mm (0.26 in) board gaps and 10 mm (0.39–0.4 in) composite deck board thickness.


• Includes 600 clips, stainless steel screws, and 2 drive bits for a ready-to-install set.


• Speeds installation with pre-set clips and star-drive screws for solid grip and reduced cam-out.


• Supports outdoor durability with PP plastic clips and 304 stainless steel for corrosion resistance.

Whether you’re building a new composite deck or replacing worn clips, this hidden fastening system helps you achieve uniform spacing, tidy board alignment, and a more finished surface without exposed screws. One kit covers approximately 330 sq ft (33 m²), making it practical for mid-to-large decking projects. Keep a set on hand for repairs or expansions and grab yours today to streamline your next outdoor build.

• Quantity: 600 pcs


• Color: Black


• Compatible decking gap: 6.5 mm / 0.26 in


• Compatible decking thickness: 10 mm / 0.39 in (approx. 0.4 in)


• Clip material: PP (polypropylene)


• Screw material: 304 stainless steel


• Clip size: 32 x 19 x 13 mm / 1.26 x 0.75 x 0.51 in


• Net weight: 2.5 kg / 5.51 lbs


• In the box: 600 clips, screws, 2 drive bits


• Estimated coverage: approx. 330 sq ft / 33 m²