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B&Q£5.10Visit shop B&Q - M4 Pan Head Zinc-Plated Carbon Steel Machine Screw & Nut (Dia)4mm (L)30mmPack Of 20
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The Diall M4 Cruciform Philips Pan Head Machine Screw & Nut set is an essential hardware choice for DIY enthusiasts, hobbyists, and professionals who require a secure, versatile fastening solution for light-duty construction or assembly projects. These 30mm silver-finished fasteners offer a clean aesthetic and reliable holding power, though users should ensure they are not used for high-torque structural applications where heavier-duty fasteners are mandated.
| Colour | Silver |
|---|---|
| Brand | Diall |
These are M4 machine screws, meaning they have a nominal thread diameter of 4 millimeters.
No, these are machine screws intended for indoor construction or assembly, not high-corrosion or structural outdoor applications.
Yes, the pack is a 20-piece set, which refers to 20 complete sets of screws and their matching nuts.
You should use a standard Philips head screwdriver, ideally size #2 for an M4 screw.
As standard machine screws, they are typically made of steel and will likely be magnetic.
Ensure the screwdriver bit is a true #2 Philips size and apply firm, downward pressure while turning.
Back the nut off slightly and check for debris in the threads; ensure the nut is perfectly square to the screw before turning.
To ensure the best performance, always use a correctly sized #2 Philips screwdriver head to prevent stripping the cruciform recess. When installing, manually thread the nut onto the screw first to ensure the threads are clear before tightening with tools. While the silver finish provides some resistance to environmental elements, these screws are best utilized in interior environments to avoid potential corrosion over time. If using in damp locations, consider applying a light coating of machine oil or using a protective sealant.
