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The Range£7.33Visit shop Unifix Grade 10.9 Socket Button Head Screws M5 X 8 - Box Of 200 - Grey
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Designed for professionals and DIY enthusiasts, the Unifix Grade 10.9 Socket Button Head Screws offer superior tensile strength and structural integrity for heavy-duty fastening tasks. These high-grade steel fasteners are ideal for applications requiring a low-profile aesthetic and high vibration resistance, though the bright zinc plated finish is intended for indoor or sheltered use rather than harsh, direct-exposure environments.
| Colour | Grey |
|---|---|
| Model Part Number | 1355381 |
| Brand | Unifix |
Grade 10.9 indicates the strength of the steel. It denotes a nominal tensile strength of 1000 MPa and a yield strength of 900 MPa, making it a high-strength fastener.
The Bright Zinc Plated finish provides limited protection. It is recommended for indoor or sheltered use; for harsh outdoor conditions, stainless steel fasteners are a better choice.
Yes, as they are manufactured from high-tensile carbon steel, they will be attracted to magnets.
The socket head allows for higher torque application than standard slotted or Phillips heads and provides a clean, professional finish.
Yes, these are supplied in standard boxes containing 200 units.
Ensure you are using the correct metric hex key size and that the tool is fully inserted into the socket before applying torque.
Check that the hole is properly tapped for an M8 thread and ensure the bolt is perfectly perpendicular to the surface to avoid cross-threading.
Installation requires a standard internal hex key or a hex driver bit matched to the screw size. Always use the correctly sized tool to prevent 'rounding' of the socket. For best results, use a torque wrench to ensure the screw is tightened to the manufacturer's specified torque limit for an M8 size bolt. Maintain the finish by keeping the screws in a dry environment; if exposed to moisture, consider a light application of machine oil or an additional protective spray to prevent the BZP finish from oxidizing over time.
