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B&Q£3.79Visit shop B&Q - Pz Pan Head Yellow-Passivated Steel Wood Screw (Dia)4mm (L)40mmPack Of 100
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The Diall Pz Pan Head Wood Screws are ideal for DIY enthusiasts and homeowners tackling small-to-medium fastening projects, specifically those involving plasterboard. These 4mm x 40mm yellow zinc-plated screws offer reliable durability for general wood and wallboard applications, though users should note that they require pre-drilling for optimal surface integrity.
| Colour | Yellow |
|---|---|
| Brand | Diall |
These screws are yellow zinc plated and are designed primarily for indoor use. They are not recommended for long-term outdoor exposure.
Yes, pre-drilling is highly recommended to ensure the surface material does not split and to allow for easier installation.
These screws have a diameter of 4mm.
Yes, this specific model features a fully threaded shank for consistent gripping.
These screws are compatible with a standard Pozidriv (Pz) bit, typically size Pz2.
The pack contains 100 individual screws.
Ensure you are using the correct Pz2 driver bit and that the drill torque is set appropriately.
You must pre-drill a pilot hole before insertion to relieve internal material pressure.
Verify the pilot hole diameter is appropriate and ensure the driver bit is fully engaged in the head.
To achieve the best results, always measure the thickness of your material to ensure a 40mm screw provides sufficient penetration into the wood substrate. It is highly recommended to pre-drill a pilot hole slightly smaller than the 4mm diameter of the screw shank, especially when working with hardwoods or near the edges of materials, to prevent splitting. Use a compatible Pz2 driver bit to avoid damaging the screw head. While the yellow zinc plating is robust, avoid using these screws in high-moisture areas or exterior locations where stainless steel would be a better alternative.
