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The Range£14.49Visit shop Unifix Grade 12.9 Socket Head Cap Screws M8 X 10 - Box Of 200 - Grey
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The Unifix Grade 12.9 Socket Head Cap Screws are engineered for professionals and DIY enthusiasts who require high-strength fastening solutions in heavy-duty machinery and structural applications. These screws offer exceptional tensile strength and durability, meeting the rigorous DIN 912 international standards for precision and reliability. While they provide excellent corrosion resistance due to their bright zinc plating, users should note that they are specifically designed for environments where socket-drive torque application is required, making them less suitable for low-clearance areas where a standard hex bolt might be preferred.
| Colour | Grey |
|---|---|
| Model Part Number | 1355330 |
| Brand | Unifix |
Grade 12.9 indicates the mechanical property of the steel, specifically representing a high tensile strength of approximately 1200 MPa.
The bright zinc plating offers good corrosion resistance for moderate environments, but for direct, long-term salt-water exposure, stainless steel alternatives are recommended.
It is generally recommended to replace Grade 12.9 fasteners if they have been subjected to significant torque or high-stress loads, as they may have experienced stretching.
You will need a standard metric hex key (Allen wrench) or a hex socket bit for use with a torque wrench.
Yes, they are manufactured to meet DIN 912 standards.
Ensure you are using the correct metric size hex key and that it is fully seated in the bolt head before applying pressure.
Check the hole for debris or cross-threading, and verify that the thread pitch matches your hardware perfectly.
To install, ensure you are using a high-quality hex key that fits the socket perfectly to prevent stripping. Always start the thread by hand to avoid cross-threading, especially when fastening into delicate machine housings. For critical structural joints, consult the manufacturer's torque specifications to ensure the bolt is tightened to the correct tension. To maintain the zinc plating, avoid using abrasive cleaning pads or strong chemical solvents that could strip the protective layer. Store in a dry, cool location to prevent moisture buildup that might eventually lead to oxidation over long periods of non-use.
