Introducing the SPAX Decking Cylindrical Head Screws, designed for securely fastening timber to steel with a 5.5mm Delta-Seal secondary thread. These screws are engineered to provide a strong, reliable connection that resists corrosion and withstands the elements. With their cylindrical head design, they blend seamlessly into the surface of your decking, creating a smooth, even finish. Whether you’re building a new deck or repairing an existing one, these screws are the perfect choice for a long-lasting, high-quality result.

Product Uses

These SPAX Decking Cylindrical Head Screws are ideal for use in a variety of applications, including:

• Fastening timber to steel in decking construction
• Securing joists to steel beams in deck framing
• Attaching ledger boards to steel supports in deck installation
• Repairing or reinforcing existing decking structures

Technical Data

• Diameter: 5.5mm
• Length: Various lengths available
• Head Type: Cylindrical
• Thread Type: Secondary Thread
• Material: Delta-Seal

Upgrade your decking projects with the SPAX Decking Cylindrical Head Screws, and enjoy a secure, long-lasting connection that you can rely on. Order yours today!

Product Videos

Custom Field

Variant Screws
Diameter 5.5mm
Model T25
Head Cylindrical
Thread Secondary
Material Delta-Seal
Application Decking
Range Timber Universal
Application Multi Purpose

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SPAX Screws | 5.5mm T25 Cylindrical Head Decking Screws Timber to Steel with Secondary Thread in Delta Seal