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The Range£5.37Visit shop Unifix Drywall Screws Bugle Head Fine Thread Black Phosphate Ce 3.5 X 25Mm 9Tqdrywall/005 Box Of 200 - Grey
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The Unifix Drywall Screws (3.5 x 45mm) are essential hardware for DIYers and professional contractors looking for a reliable solution for drywall installation. These screws feature a specialized bugle head design that ensures a flush, secure fit without damaging the paper surface of the board. While they offer excellent grip and corrosion resistance, users should note that they are designed specifically for fine-thread applications in timber or steel stud framing, and may not be suitable for masonry or concrete surfaces without appropriate anchors.
| Colour | Black |
|---|---|
| Model Part Number | 9Tqdblbug/405 |
| Brand | Unifix |
No, these screws have a black phosphate coating designed for interior drywall applications and do not have the high-level corrosion resistance required for outdoor exposure.
These screws are specifically identified with a fine thread, which is effective for light-gauge steel studs, but for heavy-gauge metal, self-drilling (Tek) screws are recommended.
These screws are compatible with a standard PH2 (Phillips #2) screwdriver bit.
Generally, no. The sharp point of the Unifix drywall screw is designed to pierce drywall and wood framing without the need for a pilot hole.
The bugle head is shaped like a trumpet; it allows the screw to transition smoothly into the drywall surface, compressing the paper rather than tearing it.
Ensure you are using the correct size Phillips-head bit and that the drill speed is controlled, not excessive.
Check that the pilot hole (if used) isn't too large, or ensure the screw has passed fully through the drywall into the stud material.
Adjust your drill depth setting or use a dimpler bit to prevent the screw from sinking too far into the material.
To install, ensure your stud alignment is marked on the wall surface. Use a standard Phillips-head driver; a magnetic bit holder is recommended to keep the screw stable during the initial penetration phase.
Compatibility Guidelines:
