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B&Q£9.79Visit shop B&Q - 5.0 X 100mm Csk Pozi Advanced Multi Purpose ScrewsBox Of 100 9251
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These US Pro Advanced Multi Purpose Screws are designed for DIY enthusiasts and professionals tackling wood-based projects. Their key benefit is a secure, split-free join with ease of insertion due to advanced cutting and thread features. A caveat is their specific size and finish, best suited for interior wood applications. This box contains 100 yellow zinc-coated screws, measuring 5.0 x 100mm, featuring a quick start Type 17 cutting point, serrated thread, and knurled shank for enhanced performance.
| Colour | Yellow |
|---|---|
| Model Part Number | 9251 |
| Brand | US Pro |
For most softwood and medium-density woods, the Type 17 cutting point allows you to drive the screw directly without a pilot hole. For very hard woods or when screwing close to edges, pre-drilling a pilot hole can prevent splitting and make insertion easier.
The knurled section of the shank prevents the screw from 'jacking'. Jacking occurs when the top piece of timber is pushed upwards as the screw tightens, leaving a gap. The knurled shank helps to keep both pieces of timber pulled together securely.
The yellow zinc finish provides some corrosion resistance, making them suitable for protected outdoor applications. For prolonged exposure to weather or high humidity, screws with a more robust coating (like stainless steel or ceramic) are recommended.
These screws feature a Pozi drive head. For the 5.0mm diameter screw, a PZ2 screwdriver bit is typically the correct size.
Each box contains 100 screws.
They are highly versatile and suitable for fixing chipboard, fibreboard, hardwood, MDF, and softwood.
Ensure you are using the correct Pozi drive (PZ2) screwdriver bit and that it is fully engaged with the screw head. Apply firm, steady pressure and avoid excessive speed.
If working with very brittle or thin material, consider pre-drilling a pilot hole slightly smaller than the screw's core diameter. Ensure screws are not driven too close to the edge of the wood.
Check that the material is suitable for screw fixing. If the hole is oversized, you may need to use a larger diameter screw or a wood dowel and glue for a stronger fix.
Inspect screws before use. If coating is compromised, especially if the screw will be exposed to moisture, consider using an exterior-grade screw or applying a sealant.
Setup: These screws are ready for immediate use. Ensure you have the correct Pozi drive screwdriver bit (PZ2 is common for this size) to match the screw head. Drive the screws straight and true into the material.
Compatibility: Highly compatible with various wood-based materials including softwood, hardwood, MDF, chipboard, and fibreboard. The 5.0 x 100mm size is well-suited for joining timber sections of approximately 20-50mm thickness, depending on the application.
Care: Store screws in a dry environment to maintain the integrity of the yellow zinc coating. Clean away any dust or debris from the screws before use. Avoid over-driving the screws, which can strip the head or damage the material.
