Diall Fine Iron Plasterboard Screw - Black
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B&Q£16.86Visit shop B&Q - Phillips Bugle Carbon Steel Plasterboard Screw (Dia)3.5mm (L)55mmPack Of 1000
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B&QB&Q - Phillips Bugle Carbon Steel Plasterboard Screw (Dia)3.5mm (L)55mmPack Of 1000
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Full details
This guide is for DIY enthusiasts and builders needing reliable fasteners for drywall installations. The key benefit is the durable carbon steel construction and black phosphate coating for corrosion resistance, ensuring secure and long-lasting joints. A caveat is their recommendation for steel applications, meaning they may not be optimal for all wood framing without pilot holes. This pack contains 1000 countersunk, fully threaded screws, each 55mm long and 3.5mm in diameter, designed for efficient and strong plasterboard fixing.
All features
| Colour | Black |
|---|---|
| Brand | Diall |
Extended Product Information
FAQs
What material are these screws made of?
They are constructed from durable carbon steel with a black phosphate coating.
What is the recommended use for these screws?
They are recommended for fixing plasterboard to steel framing, but can also be used with wood framing if pilot holes are pre-drilled.
How long are these screws?
Each screw is 55mm in length.
What is the diameter of the screws?
The diameter of each screw is 3.5mm.
Are these screws suitable for exterior use?
These screws are best suited for interior applications. While the black phosphate coating offers some corrosion resistance, they are not designed for prolonged exposure to harsh weather or high moisture environments.
What does 'countersunk' mean for the screw head?
A countersunk head is designed to sit flush with or slightly below the surface of the material it's fastening, allowing for a smooth finish without protruding.
Why are they called 'fine iron' screws?
This likely refers to the material (iron-based alloy) and the thread type (fine thread), which offers good holding power.
Troubleshooting
Screw head stripping during driving
Ensure you are using the correct size driver bit. Reduce driving speed and pressure. For harder materials, consider pre-drilling a pilot hole.
Screw not holding securely
Verify the screw is penetrating sufficiently into the framing material. If using wood, ensure a pilot hole was drilled. Check that the framing material is rigid and not damaged.
Plasterboard cracking around the screw head
The screw may be driven too deeply. Back the screw out slightly until it is flush or just below the surface of the plasterboard paper without tearing it. Ensure you are not over-driving the screw.
Rust spots appearing on screws
This can occur if screws are stored in damp conditions or exposed to moisture after installation. Ensure dry storage and consider a sealant for exposed areas if significant moisture is expected.
Pros and Cons
Pros
- Strong and durable carbon steel build.
- Corrosion-resistant black phosphate coating.
- Countersunk head for a flush finish.
- Full thread ensures excellent grip.
- Bulk pack provides good value for projects.
Cons
- Primarily recommended for steel, may require pilot holes for wood.
- Specific length might not suit all plasterboard thicknesses.
- Black phosphate coating can wear under extreme abrasion.
- Not designed for exterior use where heavy moisture is present.
Setup, Compatibility & Care
Setup: These screws are designed for use with standard power drills or drywall screw guns. Ensure your drill bit is compatible with the screw head type (typically Phillips #2).
Compatibility: Primarily recommended for fixing plasterboard to steel framing. While they can be used with wood framing, pilot holes are advised to prevent splitting and ensure optimal screw engagement, especially in harder woods. They are suitable for standard interior drywall applications.
Care: Store screws in a dry environment to maintain the integrity of the black phosphate coating. Avoid prolonged exposure to moisture. Clean any dust or debris from the screws after installation before applying finishes.