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The Range£5.68Visit shop Unifix General Purpose Chippy Woodscrews 4.5 X 75/46Mm - 9Chippyz/145 - Box Of 100 - Grey
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The Unifix General Purpose Chippy Woodscrews are an ideal choice for both professional contractors and DIY enthusiasts who require reliable hardware for a variety of wood-based construction projects. Featuring a Pozi countersunk head for superior driver grip and a bright zinc-plated finish for enhanced corrosion resistance, these screws provide a secure and long-lasting fit. While they offer excellent versatility for general carpentry, users should ensure they utilize the correct drill bit size for pilot holes to avoid potential wood splitting in dense timber.
| Colour | Silver |
|---|---|
| Model Part Number | 9Chippyz/195 |
| Brand | Unifix |
These screws feature a bright zinc plating which is suitable for indoor or sheltered outdoor use, but they are not recommended for high-moisture or salt-air environments.
While it is not always mandatory for softwoods, drilling a pilot hole is strongly recommended when working with hardwoods or near the edge of boards to avoid splitting.
The 80mm represents the total length of the screw, while the 53mm represents the length of the threaded portion.
Yes, being steel-based with a zinc plating, these screws are magnetic, which can be helpful for positioning with a magnetic bit holder.
You should use a Pozi (PZ) drive bit that matches the size of the screw head to ensure proper grip.
These are general-purpose wood screws; please check your local building codes to ensure they meet the specific requirements for your structural application.
Ensure you are using the correct size Pozi bit and check that the bit is not worn down; apply steady, forward pressure while driving.
The wood density may require a pilot hole; drill a small hole first to relieve pressure before driving the screw.
Check if the wood is particularly dense and increase pilot hole diameter, or ensure the battery of your cordless drill is fully charged.
To ensure the best results, use a high-quality Pozi drive bit that matches the screw size exactly to prevent damaging the head. If working with hardwoods, it is highly recommended to drill a pilot hole slightly smaller than the screw shank (approx. 3.5mm-4mm) to prevent the wood from splitting upon entry.
While the bright zinc plating is durable, these screws are not recommended for long-term exposure to salt air or constant moisture environments without additional protection. Store the remaining screws in a dry environment to prevent premature oxidation of the plating. Avoid using these in acidic wood types like green oak, as this can degrade the finish rapidly.
