DIYUK M10 10mm Coach Screws - Silver

Installation of our 10mm Hex Head Coach Screws is straightforward, thanks to their user-friendly d...

Best current price£5.05from OnBuy.com

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OnBuy.comM10 Hex Head Coach Screws Heavy Duty Lag Bolts Steel Zinc Plated Din 571 5056826601629
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B&QB&Q - M10 10mm Coach Screws Length: 120mm ( Pack Of: 1 ) Hex Hexagon Head Lag Bolts Wood Screws Steel Zinc Plated Din 571
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£7.28
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Product Information

Full details

The DIYUK M10 10mm Coach Screws are ideal for contractors and DIY enthusiasts who require high-strength, reliable fasteners for structural wood and concrete applications. These heavy-duty lag bolts provide exceptional holding power and durability through their high-quality steel construction and protective zinc plating, though users should ensure they have the correct socket or wrench size on hand to accommodate the hexagon head design.

All features

ColourSilver
BrandDIYUK

Extended Product Information

FAQs

Can these screws be used outdoors?

Yes, the zinc-plated finish provides good resistance to environmental factors, making them suitable for many outdoor applications.

Do I need to drill a pilot hole?

Yes, for both wood and concrete, drilling a pilot hole is essential to prevent material splitting and to ensure the screw seats properly.

What tools do I need for installation?

You will need a socket wrench, a drive socket of the appropriate size for the hex head, or an adjustable spanner.

Are these screws suitable for concrete?

Yes, they can be used in concrete provided a suitable masonry wall plug or anchor system is used alongside the screw.

What is the diameter of these screws?

These are M10 screws, meaning they have a 10mm diameter.

Can I reuse these screws?

While they are high-strength, it is generally recommended to use new fasteners for critical structural connections to ensure maximum integrity.

Troubleshooting

Screw is difficult to drive into the material

Ensure the pilot hole is of the correct diameter and depth; consider using a lubricant on the threads.

Wood is splitting during installation

The pilot hole is likely too small; drill a larger pilot hole before driving the screw again.

Head is rounding off when applying torque

Check that the socket or wrench is the correct size and fully seated on the hex head before applying pressure.

Pros and Cons

Pros

  • Excellent holding strength for structural projects
  • Easy to drive using standard hand tools
  • Corrosion-resistant zinc coating for longevity
  • Professional-grade durability
  • Versatile use across wood and concrete

Cons

  • Requires pre-drilling in dense woods to prevent splitting
  • Not intended for thin or delicate materials
  • Hex head requires a wrench rather than a screwdriver

Setup, Compatibility & Care

For optimal results, ensure the appropriate pilot hole is drilled before insertion, especially when working with dense timber. Use a socket wrench or adjustable spanner that fits the 10mm hexagon head securely. While the zinc plating offers environmental protection, avoid using these screws in highly acidic or marine environments, as additional anti-corrosion treatments may be required. Store in a dry place to prevent the oxidation of the zinc layer during long-term storage.

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