Diall Hex Steel Concrete Screw - Dia 10mm - L 100mm - Pack of 2
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B&QB&Q - Hex Steel Concrete Screw (Dia)10mm (L)100mmPack Of 2
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Product Information
Full details
This guide is for DIY enthusiasts and tradespeople needing a robust fastening solution for masonry applications. The Diall Hex Steel Concrete Screws (10mm x 100mm) provide a high-strength, non-expansion anchor ideal for attaching uPVC and timber frames to concrete, brick, or blockwork. A key benefit is their suitability for edge or close-proximity fixing without material damage, though proper pilot hole drilling is essential for optimal performance.
All features
| Brand | Diall |
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Extended Product Information
FAQs
What type of material can these screws be used in?
These screws are designed for use in solid masonry such as concrete, brick, and block. They are also suitable for attaching uPVC and timber frames.
Do I need to pre-drill a hole?
Yes, a pilot hole must be drilled into the masonry before inserting the screw. The size of the pilot hole is critical for optimal performance.
What are the dimensions of this screw?
The screws have a diameter of 10mm and a length of 100mm.
Can these screws be used for outdoor applications?
While made of steel, long-term outdoor exposure may lead to corrosion. For extended outdoor use, consider appropriate protective coatings or alternative fasteners.
What is the advantage of the non-expansion design?
The non-expansion design means the screw does not exert outward pressure on the masonry as it's tightened. This makes it safer to use near edges or close to other fixings, reducing the risk of cracking the material.
Are these screws suitable for plasterboard?
No, these screws are specifically designed for solid masonry and are not suitable for plasterboard or hollow wall applications.
How many screws are in a pack?
This product listing is for a pack of 2 screws.
Troubleshooting
Screw won't thread into masonry
Ensure the pilot hole is drilled to the correct diameter and depth. Clean the pilot hole thoroughly of dust and debris. Check if the masonry material is suitable for this type of screw.
Screw head is stripping
Use the correct size hex driver bit. Ensure the driver bit is seated firmly in the screw head before applying torque. Reduce driving speed if using a power tool.
Frame feels loose after installation
The pilot hole may be too large, or the screw is not penetrating sufficiently into solid material. Re-evaluate pilot hole size and ensure adequate embedment into the masonry.
Screw is difficult to remove
Apply penetrating oil if possible. Use a longer-handled wrench or driver for increased leverage. If the screw is damaged, specialized screw extractors may be needed.
Pros and Cons
Pros
- Securely fastens frames to masonry without expansion pressure.
- Ideal for installations near edges or other fixings due to its non-expansion nature.
- Fully removable and reusable, offering flexibility for temporary or adjustable applications.
- Durable steel construction ensures long-lasting performance.
- Hex head allows for strong torque application during installation.
Cons
- Requires a pre-drilled pilot hole of the correct size.
- Not suitable for very soft or friable materials.
- May require specific driver bits for the hex head.
- Limited to specific dimensions (10mm x 100mm) which may not suit all applications.
- Can be challenging to remove if over-tightened or embedded in hard material.
Setup, Compatibility & Care
Setup:
- Determine the required pilot hole diameter based on the masonry type and the screw's 10mm diameter. Typically, a hole slightly smaller than the screw's thread diameter is recommended.
- Drill a pilot hole to the required depth, ensuring it is clean and free of debris.
- Insert the Diall Hex Steel Concrete Screw into the frame.
- Drive the screw into the pilot hole using an appropriate hex driver bit and a power drill or wrench. Ensure the screw is tightened securely but avoid over-tightening.
Compatibility:
- Compatible with uPVC frames, timber, and most solid masonry materials (concrete, brick, block).
- Requires a hex driver bit compatible with the screw's head size.
Care:
- Store screws in a dry environment to prevent rust.
- Clean any dust or debris from the screw head after installation if necessary.
- For re-use, ensure the screw threads are clean and undamaged.