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TIMCO C2 Deck-Fix Premium Countersunk Decking Screws - Green - 4.5 x 75mm - 250 Pcs
A premium decking screw using C2 twin-cut technology, coated with a patented multi-layer corrosion...A premium decking screw using C2 twin-cut technology, coated with a patented multi-layer corrosion-resistant plating to withstand up to 1,000 hours in a salt spray cabinet. This innovative design allows the screw to rapidly penetrate timber, cleanly countersink, and securely clamp the decking board to the joists. Features include strengthened head to prevent shearing with impact tools, ribs under the head for improved countersinking, and a helix shank for debris removal and improved clamping. The screw has a TX20 drive type and a countersunk head with ribs. Suitable for exterior use with a corrosion rating of 3 for urban and industrial areas with low salt atmosphere. Includes one TX20 S2 bit.
Timco 75C2d250 C2 Decking Screw Tx20 Csk Green 4.5 X 75Mm Tub Of 250Free delivery in 1–3 days£16.84Visit shop →
Product Information
Full details
For builders and DIY enthusiasts undertaking exterior decking projects, these TIMCO C2 Deck-Fix screws offer a robust and durable fastening solution, ensuring a secure and long-lasting finish. A key benefit is their advanced corrosion resistance, though their specialized design may require specific driver bits.
All features
Colour
Green
Model Part Number
75C2D250
Brand
Timco
Extended Product Information
FAQs
What is the primary advantage of the C2 Twin-Cut Technology?
The C2 Twin-Cut Technology allows the screw to penetrate timber more rapidly and cleanly, reducing installation time and the risk of splitting the wood.
How does the corrosion resistance rating (1,000 hours salt spray) benefit me?
This rating indicates superior protection against rust and corrosion, making these screws ideal for outdoor decking and structures that are exposed to moisture and varying weather conditions.
What is the purpose of the ribs under the screw head?
The ribs are designed to create a clean, precise recess, allowing the screw head to sit flush or slightly below the surface of the decking board for a neat finish and to prevent trip hazards.
Can I use these screws with any drill or driver?
These screws feature a TX20 drive type. You will need a drill or impact driver with a compatible TX20 bit. A TX20 S2 bit is included in the pack.
Are these screws suitable for treated timber?
Yes, they are suitable for use with treated timber as well as untreated softwood, hardwood, and composite decking materials.
What does 'Corrosion Rating 3' mean?
Corrosion Rating 3 signifies suitability for use in urban and industrial environments that experience low levels of salt atmosphere, such as general outdoor construction.
What is the helix shank for?
The helix shank helps to remove wood debris as the screw is driven in, preventing binding and improving the screw's ability to securely clamp the decking board to the joist.
Troubleshooting
Screw head shears off during driving
Ensure you are using the correct TX20 bit and that it is fully engaged in the screw head. Reduce the torque setting on your impact driver if it's set too high. Verify the screw is not encountering an obstruction in the timber.
Screw does not countersink properly
Confirm the ribs under the screw head are clean and unobstructed. Ensure the timber is suitable for countersinking; very dense hardwoods might require a pilot hole for optimal results. Check that the TX20 bit is correctly seated.
Screw struggles to penetrate timber
Verify you are using the correct driver speed and pressure. For extremely dense hardwoods, a small pilot hole might be beneficial. Ensure the screw tip is sharp and clean.
Corrosion observed on screws after installation
While rated for 1,000 hours salt spray, extreme or prolonged exposure to harsh chemicals or coastal salt spray beyond the stated rating could eventually affect the plating. Ensure the environment aligns with Corrosion Class 3 rating. Clean any debris from the deck surface regularly.
Pros and Cons
Pros
Excellent corrosion resistance for outdoor longevity.
Fast and clean installation due to C2 technology and countersinking ribs.
Durable construction resists head shearing with power tools.
Secure clamping action provided by the helix shank.
Includes a high-quality TX20 S2 bit for immediate use.
Cons
Requires a TX20 driver, not a standard Phillips or Pozidriv.
Specialized features might be overkill for interior non-corrosive applications.
Sold in specific pack quantities (250 pcs), may need to purchase multiple packs for larger jobs.
Setup, Compatibility & Care
Setup:
Ensure you have a power drill or impact driver equipped with a TX20 bit. A TX20 S2 bit is included in the pack for convenience.
Align the decking board with the joist where fastening is required.
Drive the screw directly through the decking board into the joist using your TX20 driver.
The screw's design will automatically countersink for a flush finish.
Compatibility:
Primarily designed for decking applications, suitable for both softwood and hardwood timbers, as well as composite decking.
Compatible with standard TX20 drive systems.
Ideal for exterior use in environments rated for Corrosion Class 3 (urban and industrial areas).
Care:
While highly corrosion-resistant, it is advisable to keep screws stored in a dry environment prior to use.
After installation, no specific ongoing care is required for the screws themselves. Regular deck maintenance (cleaning, sealing) will indirectly protect the fastened materials.
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