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The Range£8.63Visit shop Unifix A2-304 Self-Tapping Screws 12G X 1/2" - Q207981c00550013000 - Box Of 200 - Grey
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The Unifix A2-304 Self-Tapping Screws are professional-grade fasteners designed for DIY enthusiasts and contractors seeking reliable connections in wood and metal. These screws provide superior corrosion resistance and efficient installation thanks to their specialized self-tapping design and Pozi pan head geometry; however, users should note that they are optimized for specific material thicknesses and pre-drilling may be required in harder metal surfaces.
| Colour | Grey |
|---|---|
| Model Part Number | Q207981C00630032000 |
| Brand | Unifix |
These screws are made from A2-304 grade stainless steel, which offers excellent resistance to corrosion.
Yes, the A2-304 stainless steel is suitable for most outdoor applications where moderate exposure to the elements is expected.
14G refers to the gauge of the screw, which indicates the shank diameter.
For soft wood, pre-drilling is often unnecessary, but for metal applications, a pilot hole is highly recommended for best results.
A2-304 stainless steel is generally non-magnetic, though minimal magnetism can sometimes occur due to the cold-working process during manufacturing.
These screws feature a Pozi pan head, so a Pozi-compatible driver bit is required to ensure a secure fit and prevent cam-out.
Ensure you are using the correct size Pozi drive bit and apply consistent, firm downward pressure while driving.
Verify the material thickness and ensure a properly sized pilot hole has been drilled to assist the self-tapping threads.
To achieve optimal performance, use a compatible Pozi driver bit. For installations involving hard metals, it is recommended to drill a pilot hole slightly smaller than the screw's core diameter to prevent potential shearing. While A2-304 stainless steel is highly resistant to corrosion, avoid using these screws in highly acidic or marine-heavy salt environments where A4-316 grade may be preferred. Store in a dry environment to keep the threads clean and debris-free prior to use.
