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The Range£7.01Visit shop Unifix Coach Screws Hexagon Head Din 571 Bright Zinc Plated Ce - M10 X 40 (Box Of 50) - White
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The Unifix Coach Screws (M10 x 90) are ideal for professional contractors and DIY enthusiasts working on heavy-duty timber construction and landscaping projects. These screws offer exceptional fastening strength and corrosion resistance thanks to their Bright Zinc Plated finish and robust hexagon head design, though they require pre-drilling into hardwood to prevent splitting.
| Colour | White |
|---|---|
| Model Part Number | 1426973 |
| Brand | Unifix |
Yes, it is highly recommended to pre-drill a pilot hole to prevent the timber from splitting, especially when working with hardwood.
These screws feature a hexagon head, so they should be tightened using a socket wrench, ratchet, or an appropriately sized spanner.
They feature a Bright Zinc Plated finish which offers resistance against oxidation, making them suitable for outdoor use in sheltered or dry conditions.
This variant is an M10 size with a total length of 90mm.
Each box contains 50 units.
DIN 571 is a German industry standard for wood screws with hexagon heads, ensuring consistent dimensions and material quality.
Ensure a proper pilot hole has been drilled; use a lubricant like wax or soap on the screw threads to reduce friction.
Ensure your socket or spanner is the correct 17mm size and fully seated on the head before applying high torque.
For optimal results, always drill a pilot hole approximately 70-80% of the screw diameter to avoid timber splitting, especially when working with dense hardwoods. These screws are compatible with standard metric socket sets or open-ended spanners. While the BZP finish is durable, avoid using these in high-salinity or acidic environments, as direct exposure may accelerate surface oxidation. Store the remaining screws in a cool, dry place to maintain the integrity of the zinc coating.
