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B&Q£12.51Visit shop B&Q - Grade 10.9 Socket Csk Head Screws Din 7991 BzpM6 X 40Box Of 200
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The Range£17.12Visit shop Unifix Grade 10.9 Socket Csk Head Screws M10 X 45 - Box Of 100 - Grey
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The Unifix Grade 10.9 Socket Csk Head Screws are engineered for professionals and DIY enthusiasts who require high-strength, reliable fasteners for heavy-duty structural and mechanical applications. These screws offer exceptional tensile strength due to their 10.9 grade steel composition and feature a flush-fitting countersunk design for a professional finish. While they provide superior durability and corrosion resistance, users must ensure they have the correct hex key size to prevent stripping the internal socket during high-torque installation.
| Colour | Silver |
|---|---|
| Model Part Number | 1262935 |
| Brand | Unifix |
Grade 10.9 indicates the tensile strength of the steel; it is a high-strength fastener designed to withstand significant stress and pressure.
While they feature corrosion-resistant finishes, they are primarily for indoor or sheltered mechanical applications. For salt-heavy or wet outdoor environments, stainless steel may be required.
The countersunk head allows the screw to sit flush or below the surface of the material, providing a clean aesthetic and preventing snagging.
These screws are manufactured to meet DIN 7991 standards, ensuring they conform to international dimensions and tolerance specifications.
No, these are socket head screws and require a hexagon (Allen) key or a compatible hex bit.
Ensure you are using the correct size hex key and that it is fully seated in the socket before applying torque.
Verify the depth and angle of your countersunk pilot hole; re-drill if necessary to allow for the head taper.
Installation requires a high-quality hex key (Allen key) or a hex socket bit. To ensure the longest lifespan for both the screw and the material:
