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OnBuy.com£5.36Visit shop Unifix General Purpose Chippy Woodscrews 5.0 X 30Mm - 9Chippyz/155 - Box Of 200 5014196038216
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The Range£5.54Visit shop Unifix General Purpose Chippy Woodscrews Pozi Csk Head Bzp Ce 5.0 X 30Mm 9Chippyz/155 Box Of 200 - Grey
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The Unifix General Purpose Chippy Woodscrews (4.5 x 50mm) are essential hardware for woodworkers, carpenters, and DIY enthusiasts looking for reliable fasteners for general projects. Featuring a durable bright zinc-plated finish and a Pozi countersunk head, these screws offer excellent corrosion resistance and a clean, flush finish in timber. While these screws provide broad utility for carpentry, they are specifically optimized for standard wood applications and may not be suitable for extreme weather or high-load structural steel connections.
| Colour | Silver |
|---|---|
| Model Part Number | 9CHIPPYZ/130 |
| Brand | Unifix |
The bright zinc-plated finish offers moderate corrosion resistance, making them suitable for indoor use and sheltered outdoor projects, but they are not recommended for harsh, high-moisture, or coastal environments.
For these 4.5mm screws, use a pilot hole drill bit between 2.5mm and 3.0mm depending on the density of the wood.
No, these are designed for a Pozi drive. Using a Phillips bit will likely result in cam-out and damage to the screw head.
Yes, 50mm is the total length of the screw, including the head.
This package contains 200 screws.
Ensure you are using the correct size Pozi bit and maintain consistent downward pressure while driving.
Reduce the torque setting on your power drill or drill a smaller diameter pilot hole before driving the screw.
Ensure the pilot hole is not too large or check if the timber is too soft or decayed to hold a thread.
For optimal performance, always ensure you are using a Pozi-compatible driver bit to prevent cam-out and damage to the screw head. While these screws are self-threading in many softwoods, it is recommended to drill a small pilot hole if working with particularly hard, dense timber to prevent wood splitting. To maximize the life of the screws in humid environments, keep them stored in their original box in a cool, dry area to maintain the integrity of the zinc-plated finish.
