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The Range£7.45Visit 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 Hexagon Head DIN 571 are designed for professional contractors and DIY enthusiasts who require secure, heavy-duty fastening solutions in wood and timber construction. These M10 x 30 screws offer exceptional grip and durability thanks to their precision-engineered hexagonal heads, though users should ensure they have the correct socket tool size before beginning their assembly project.
| Colour | Silver |
|---|---|
| Model Part Number | 5014196003245 |
| Brand | Unifix |
DIN 571 is a German industrial standard that specifies the dimensions and thread profile for hexagonal head wood screws.
Yes, it is highly recommended to drill a pilot hole to ensure a straight drive and to prevent the timber from splitting.
The silver finish provides corrosion resistance suitable for many outdoor environments, though severe coastal or acidic conditions may require stainless steel alternatives.
While possible, caution must be exercised to avoid stripping the wood or the screw head due to the high torque of impact drivers.
These screws require a standard metric socket, typically 17mm for an M10 bolt/screw head.
Ensure you have drilled an appropriate pilot hole to reduce friction and prevent splitting.
Verify that your socket size matches the hexagonal head perfectly and ensure the tool is seated squarely.
To install, select a socket driver compatible with the M10 hexagonal head size. Always ensure that the timber is free of rot or structural defects before fastening. For maximum longevity, avoid overtightening, which can strip the internal threads of the wood. When storing remaining screws, keep them in a dry environment to maintain the integrity of the silver corrosion-resistant finish.
