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OnBuy.com£8.65Visit shop Confirmat Screws Cabinet Furniture Assembly Screws Hex Drive Bzp Chipboard Mdf 5.0Mm 6.4Mm 7.0Mm 5056523246529
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B&Q£13.78Visit shop B&Q - Premium Confirmat Cabinet & Furniture Assembly Screws5.0 X 40mmPack Of 50
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The SS8 Confirmat Screws are essential for professional woodworkers and DIY enthusiasts who demand superior joint strength in MDF, chipboard, and particleboard projects. By functioning as both a fastener and a structural dowel, these screws eliminate the wobbling often found in standard flat-pack furniture, providing a rigid, long-lasting assembly. While they offer exceptional holding power, users must note that they require specific pre-drilling procedures to ensure the material does not split during installation.
| Model Part Number | 5.0 X 40mm |
|---|---|
| Brand | Diyuk |
These are designed specifically for engineered woods like MDF, chipboard, and particleboard. They are not recommended for solid wood.
Yes, a stepped Confirmat drill bit is required to properly create the pilot hole for the thread, shank, and head.
Yes, the unique thread design is built to withstand repeated use without losing holding power or stripping the wood.
While the threads are aggressive, pre-drilling is essential to prevent the wood from splitting or bulging.
The unthreaded shoulder acts like a dowel, providing superior lateral stability and preventing the joint from racking over time.
Verify that your pilot hole is deep enough and matches the full length of the screw shank.
Ensure you are using the correct diameter stepped bit; using a standard drill bit will not account for the screw's shoulder and will put too much stress on the board.
Check that the panels are clamped tightly together before driving the screw to ensure the shoulder sits correctly between the two boards.
For the best results, always use a dedicated Confirmat drill bit that matches the 5.0mm diameter. This ensures the pilot hole matches the three distinct diameters of the screw: the thread diameter, the shank diameter, and the head clearance.
Keep these screws stored in a dry environment to prevent surface oxidation, especially if building cabinetry for high-humidity areas like kitchens or bathrooms.
