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The Range£5.80Visit shop Unifix General Purpose Chippy Woodscrews 3.5 X 30Mm - Bag Of 25 - Box Of 125 - Grey
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The Unifix General Purpose Chippy Woodscrews are essential hardware for woodworkers and DIY enthusiasts who require reliable grip and structural durability in their projects. These screws feature a Pozi countersunk head design that minimizes cam-out, making installation smooth and efficient for both beginners and professionals. While they provide excellent corrosion resistance due to their ZYP coating, users should note that they are specifically optimized for wood-based applications and may not be suitable for masonry or metal surfaces without proper pilot hole preparation.
| Colour | Grey |
|---|---|
| Model Part Number | 5014196542997 |
| Brand | Unifix |
These screws have a ZYP coating which offers good corrosion resistance, but for permanent outdoor exposure, stainless steel options are typically recommended.
Yes, you should use a Pozi (PZ) drive bit that matches the size of the screw head to avoid cam-out.
They feature a sharp point designed for easy entry into wood, but pre-drilling is always advised for hardwood or edge applications.
The countersunk head allows the screw to sit flush or below the surface of the timber, creating a clean finish that can be filled or painted over.
Yes, they are suitable for use in MDF, though it is always best to pre-drill to avoid splitting the board.
Ensure you are using the correct size Pozi bit and that it is fully seated in the screw head before applying torque.
Reduce the speed of your driver and pre-drill a pilot hole to relieve pressure on the timber fibers.
Back the screw out and check if the pilot hole is deep enough or if there is debris in the hole.
To ensure the best results, use a compatible Pozi screwdriver bit that matches the screw gauge size. Avoid using manual screwdrivers if you are driving a large volume of screws, as a cordless drill on a low-torque setting will offer superior efficiency.
Care Instructions:
