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The Range£16.61Visit shop Unifix A2-304 Stainless Steel Coach Screws Hexagon Head Din 571 - M6 X 50 (Box Of 200) - White
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The Unifix A2-304 Stainless Steel Coach Screws are designed for professional contractors and DIY enthusiasts who require high-strength fastening solutions for heavy-duty wood construction. These screws provide exceptional corrosion resistance and a secure grip, making them ideal for outdoor structures, though they require pre-drilling in hardwoods to prevent wood splitting during installation.
| Colour | White |
|---|---|
| Model Part Number | 1427062 |
| Brand | Unifix |
While A2-304 offers good corrosion resistance, for direct marine or coastal environments, A4-316 stainless steel is generally recommended.
No, a standard wrench, socket set, or nut driver is all you need.
No, these are specifically engineered with a coarse thread design optimized for wood.
This product comes in a bulk pack containing 200 individual screws.
A2-304 stainless steel is generally non-magnetic, though some minor magnetism may be present due to the manufacturing cold-working process.
Ensure the socket size matches the head perfectly and stop using impact drivers at full power if resistance is high.
The pilot hole diameter is likely too small; increase the drill bit size slightly to accommodate the shank diameter of the screw.
Verify the pilot hole depth is adequate and consider applying a lubricant to the screw thread before driving.
To install these screws, use a standard ratchet or impact wrench equipped with a compatible socket. While the stainless steel is durable, ensure you use the correct size tool to avoid stripping the hexagon head. For long-term care, these screws are largely maintenance-free due to their A2-304 alloy composition. If they are being driven into particularly hard or treated timbers, applying a small amount of wood-friendly lubricant to the threads can make installation smoother.
