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B&Q£10.68Visit shop B&Q - M12 12mm Coach Screws Length: 80mm ( Pack Of: 2 ) Hex Hexagon Head Lag Bolts Wood Screws Steel Zinc Plated Din 571
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The DIYUK M12 Hex Head Coach Screws in Silver are designed for contractors and DIY enthusiasts seeking reliable fastening solutions for wood and concrete. Their key benefit lies in their superior strength and durability, ensuring secure and long-lasting project completion. A potential caveat is that while versatile, they are best suited for applications requiring robust structural integrity and may be oversized for light-duty tasks. This guide will cover their features, usage, and care.
| Colour | Silver |
|---|---|
| Model Part Number | M12 |
| Brand | DIYUK |
These M12 coach screws are primarily used for heavy-duty structural applications in construction and carpentry, where high strength and reliable fastening are required for materials like wood and concrete.
You will need a socket wrench or a wrench with the correct size fitting for the M12 hexagon head to install these screws.
Yes, the zinc plating provides resistance to environmental factors and corrosion, making them suitable for outdoor applications. However, prolonged exposure to harsh conditions may eventually lead to wear.
Yes, pre-drilling a pilot hole is recommended. The pilot hole should be slightly smaller than the screw's core diameter to ensure a secure fit and prevent wood splitting.
Coach screws and lag bolts are often used interchangeably. Both are heavy-duty screws with coarse threads designed for wood, featuring a hexagon head for driving with a tool. The term 'coach screw' is common in some regions, while 'lag bolt' is more prevalent in others.
Yes, they can be used in concrete, but typically require a pre-drilled hole and the use of a suitable wall plug or anchor to provide a secure fastening point.
M12 refers to the metric thread size, indicating that the screw has a nominal major diameter of 12 millimeters.
Ensure a pilot hole has been drilled that is appropriate for the screw's diameter and the wood type. If the wood is very hard, consider a slightly larger pilot hole.
Use the correct size socket or wrench. Ensure the tool is fully seated on the head before applying torque. Avoid excessive force if resistance is met; check for obstructions or incorrect pilot hole size.
The pilot hole may be too large, or the material might be too soft. For concrete, ensure the correct anchor or plug is used. For wood, consider using a larger diameter screw if the application allows.
This may occur with prolonged exposure to moisture. For standard applications, the zinc plating provides adequate protection. For critical or highly exposed areas, consider applying a protective sealant or wax.
Setup: To install, pre-drill a pilot hole slightly smaller than the screw's core diameter in the material. Ensure the pilot hole is deep enough to accommodate the entire screw length. Use an appropriate socket or wrench that fits the M12 hexagon head to drive the screw firmly into the material. Avoid overtightening, which can strip the head or damage the surrounding material.
Compatibility: These screws are compatible with wood, timber, and concrete when used with appropriate wall plugs or anchors for concrete. They are designed to be used with standard hex-head driving tools.
Care: For prolonged durability, especially in exposed environments, periodic inspection for signs of wear or corrosion is recommended. If minor surface rust appears on the zinc plating, it can typically be cleaned with a mild detergent and water. For heavily exposed areas, consider applying a protective coating if extended longevity is critical.
