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The Range£12.90Visit shop Unifix A2-304 Stainless Steel Coach Screws Hexagon Head Din 571 - M8 X 30 (Box Of 100) - White
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The Unifix A2-304 Stainless Steel Coach Screws (M8 x 70) are high-durability fasteners designed for professionals and DIY enthusiasts who require secure, weather-resistant connections in wood projects. Featuring a robust hexagon head for high-torque installation and excellent corrosion resistance, these screws are ideal for both indoor and outdoor construction, though they require pre-drilling to ensure the best results without splitting timber.
| Colour | White |
|---|---|
| Model Part Number | Q205710000800070000 |
| Brand | Unifix |
Yes, A2-304 stainless steel offers excellent corrosion resistance, making them suitable for many outdoor applications, though they are not marine-grade (A4/316) for direct seawater immersion.
Yes, pre-drilling is highly recommended to prevent splitting the wood, especially when working with hardwoods or near the end grain.
These screws feature a hexagon head, so you will need a spanner or a socket wrench set to drive them effectively.
Coach screws are specifically designed for timber. If you must use them in masonry, you must use an appropriate-sized wall plug/anchor.
The screws are 70mm in length.
Ensure you are using a correct size pilot hole and verify the drill bit size is appropriate for the M8 shank.
Maintain a minimum distance from the edge of the wood, usually 5-7 times the diameter of the screw, and ensure a pilot hole is used.
Ensure the socket or spanner is properly seated on the bolt head before applying force; do not use an undersized tool.
To ensure a professional finish, always measure your timber thickness and ensure you have at least 50mm of engagement in the primary post.
