Samac Fixings 4.5 Diameter Decking Screws - Boxed

Samac Fixings 4.5mm Diameter Decking Screws – Boxed

Samac Fixings 4.5mm Decking Screws are specifically designed for fixing decking boards securely while allowing for natural timber movement. The single-thread design helps prevent splitting and enables boards to expand and contract with seasonal changes, resulting in a longer-lasting, more professional finish.

These screws feature a Pozi drive countersunk head, allowing them to sit neatly flush with the surface of the decking. This not only improves appearance but also reduces the risk of snagging, making them ideal for both domestic and commercial decking installations.

Corrosion Resistance & Performance

Finished with a specialist green coating, these decking screws have been tested for corrosion resistance against ACQ (Alkaline Copper Quaternary) treated timber. This makes them suitable for outdoor use and ensures long-term durability, even in challenging environments.

The high-quality coating and carefully engineered thread design provide reliable performance and consistent fixing strength across a wide range of decking materials.

Available Sizes & Pack Quantities

4.5mm Diameter – Boxed

• 50mm – Box of 200
• 60mm – Box of 200
• 75mm – Box of 200
• 100mm – Box of 100

FAQs

Are these decking screws suitable for treated timber?

Yes, the green coating has been tested for corrosion resistance against ACQ treated timber, making them suitable for outdoor decking applications.

Why are single-thread decking screws used?

Single-thread screws allow decking boards to move naturally with temperature and moisture changes, helping to reduce splitting and board damage.

Do these screws sit flush with the decking surface?

Yes, the Pozi drive countersunk head is designed to sit neatly flush, providing a clean finish and reducing trip hazards.

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Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.