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The Range£8.02Visit shop Unifix Self-Tapping Screws Pozi Pan Head Ab Din 7981C Bzp - 10 X 1.1/2 - 9Tqstspancr/115 - Box Of 100 - Grey
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The Unifix Self-Tapping Screws (8G x 2 inch) are designed for contractors and DIY enthusiasts who need a reliable, high-performance fastening solution for wood and metal applications. These screws excel at simplifying installation through their self-tapping design, though users should ensure they have the correct Pozi-drive bit to avoid cam-out during high-torque driving.
| Colour | Grey |
|---|---|
| Model Part Number | 7981-C-Z |
| Brand | Unifix |
These screws are best for indoor or sheltered environments; they lack the heavy-duty weatherproofing required for direct exposure to elements.
While it may fit, it is not recommended as it will cause cam-out and damage the head; always use a Pozi-drive bit.
8G refers to the gauge or diameter of the screw, which is a standard sizing metric for wood and metal screws.
For soft wood, you may skip it, but for metal or dense hardwoods, a pilot hole is essential for the self-tapping action to work effectively.
These feature a pan head, which has a flat underside designed to sit flush on the surface of the material.
Verify you are using a Pozi-drive (PZ) bit rather than a standard Phillips (PH) bit.
Check if the pilot hole is too small; increase the drill bit diameter for denser materials.
Ensure there is no debris in the pilot hole or that the material is not being crushed by excessive torque.
To achieve the best results, use a high-quality Pozi-drive screwdriver bit. Ensure that your power drill clutch is set correctly to avoid stripping the head or over-driving the screw into the substrate. While these screws are durable, they should be stored in a cool, dry place to maintain the integrity of the grey protective coating. If driving into dense hardwoods or thick gauge metals, consider using a lubricant on the threads to reduce friction and heat buildup during installation.
