Diall Pozidriv Countersunk Screw - Silver
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B&Q£7.94Visit shop B&Q - Pozidriv Countersunk A2 Stainless Steel Screw (Dia)4.8mm (L)38mmPack Of 25
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B&QB&Q - Pozidriv Countersunk A2 Stainless Steel Screw (Dia)4.8mm (L)38mmPack Of 25
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Product Information
Full details
This pack of 25 Diall Pozidriv Countersunk Screws is designed for DIY enthusiasts and tradespeople needing durable fasteners for various projects. The key benefit is their construction from stainless steel, offering excellent corrosion resistance for long-lasting use. A minor caveat is that they are sold in a pack of 25, which may be more than needed for very small jobs. These screws are fully threaded, 38mm in length, and have a 4.8mm diameter, providing strong holding power.
All features
| Colour | Silver |
|---|---|
| Brand | Diall |
Extended Product Information
FAQs
What material are these screws made from?
These screws are made from durable stainless steel, offering good resistance to rust and corrosion.
What type of screwdriver do I need for these screws?
You need a Pozidriv (PZ) screwdriver or bit. A standard Phillips (PH) bit will not fit correctly and can damage the screw head.
What is the length and diameter of these screws?
The screws are 38mm in length and have a diameter of 4.8mm.
Are these screws suitable for outdoor use?
Yes, due to their stainless steel construction, they are suitable for many outdoor applications where corrosion resistance is needed.
Can I use these screws in metal?
These screws are primarily designed for wood and softer materials. For metal applications, it is generally recommended to use screws specifically designed for metal.
What does 'countersunk' mean for the screw head?
A countersunk head is designed to sit flush with or slightly below the surface of the material it is fastening into, providing a smooth, flat finish.
How many screws are included in this pack?
This pack contains 25 screws.
Troubleshooting
Screw head stripping / cam-out
Ensure you are using a correct size Pozidriv (PZ) bit, not a Phillips (PH) bit. Apply firm downward pressure while turning slowly.
Screw not driving straight
Check that the pilot hole is drilled straight and is appropriately sized for the screw. Ensure the workpiece is stable.
Difficulty driving into hard wood
Pre-drill a pilot hole that is slightly larger than the core diameter of the screw, or consider a screw with a coarser thread or different design.
Pros and Cons
Pros
- Durable stainless steel construction for superior corrosion resistance.
- Countersunk head ensures a neat, flush finish on surfaces.
- Pozidriv drive offers improved torque transfer and reduced slipping.
- Fully threaded design maximizes grip and holding power.
- Suitable for a wide range of DIY and light trade applications.
Cons
- Sold in a pack of 25, which might be excessive for very small repairs.
- Pozidriv bits are required; standard Phillips bits may not fit correctly.
- Primarily suited for wood and softer materials; may require pilot holes in harder surfaces.
Setup, Compatibility & Care Instructions
Setup:
- Select Appropriate Bit: Ensure you have a Pozidriv screwdriver bit (PZ1 or PZ2 depending on screw size) for the best engagement.
- Pilot Holes: For dense wood or to prevent splitting, pre-drill pilot holes slightly smaller than the screw's core diameter.
- Countersinking (Optional): For a perfectly flush finish, use a countersink bit to create a recess for the screw head before driving the screw.
- Drive Screw: Insert the screw into the pre-drilled hole and drive it using the Pozidriv bit until the head is flush with the surface.
Compatibility:
- Materials: Suitable for use in wood, particleboard, MDF, and some plastics. For metal applications, specific metal screws should be considered.
- Tools: Requires a Pozidriv screwdriver or drill bit. Using a Phillips bit may damage the screw head and driver.
Care:
- While stainless steel offers excellent corrosion resistance, prolonged exposure to harsh chemicals or abrasive cleaning might affect the finish over time.
- Clean with a damp cloth if necessary. Avoid abrasive cleaners.