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The Range£7.72Visit shop Unifix Coach Screws Hexagon Head Din 571 Bright Zinc Plated Ce - M12 X 80 (Box Of 25) - White
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The Unifix Coach Screws (M8 x 110) are professional-grade fasteners designed for heavy-duty wood-to-wood or wood-to-masonry applications where high mechanical strength is required. Ideal for builders, contractors, and DIY enthusiasts, these screws provide a secure, permanent hold thanks to their robust hexagon head design. While they offer exceptional durability for large projects, users should note that they require pilot holes in harder wood types to prevent splitting.
| Colour | Silver |
|---|---|
| Model Part Number | Hxc08 110 000 |
| Brand | Unifix |
These screws feature a standard hexagon head compatible with standard metric spanners or socket wrenches.
Yes, they are suitable for outdoor timber projects, though the silver finish should be monitored in highly corrosive or coastal environments.
No special tools are required; a standard socket wrench or a high-torque spanner is sufficient.
DIN 571 is a German industrial standard that defines the dimensions and requirements for hexagon head wood screws.
They are designed primarily for wood-to-wood connections. For metal-to-wood, ensure you are using appropriate washers to distribute the load.
Ensure the pilot hole is correctly sized for the M8 shank and consider applying a small amount of lubricant to the threads.
The pilot hole is likely too small or missing entirely; increase the diameter of your pilot drill bit.
Verify that your socket tool fits snugly and is not worn; avoid using excessive force at an angle.
For optimal results, always drill a pilot hole approximately 60-70% of the screw's core diameter before driving the screw; this significantly reduces the risk of splitting the timber. When fastening into masonry, ensure the use of an appropriate high-quality wall plug compatible with an M8 screw. To maintain the life of the finish, avoid using impact drivers with worn sockets that could strip the coating, and keep the screws in a dry, cool environment to prevent premature oxidation.
