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The Range£19.27Visit shop Unifix Grade 10.9 Ht Fine Pitch Hexagon Setscrews M10 (1.25) X 40 - Grey
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The Unifix Grade 10.9 HT Fine Pitch Hexagon Setscrews are engineered for professionals and DIY enthusiasts requiring high-strength fasteners for critical construction and engineering projects. By utilizing Grade 10.9 high tensile steel and a fine pitch thread design, these setscrews provide exceptional load distribution and resistance to vibration-induced loosening. While they offer superior mechanical integrity compared to standard hardware, users must ensure they have the correct torque specifications and thread pitch measurements before installation to avoid stripping or over-tightening.
| Colour | Grey |
|---|---|
| Model Part Number | 5014196377995 |
| Brand | Unifix |
Grade 10.9 denotes the tensile strength of the steel. It is a high-tensile rating suitable for heavy-duty industrial and automotive applications.
While durable, these setscrews have a standard grey finish and may be susceptible to rust in wet conditions. Use in a protected environment or apply a protective coating.
Fine pitch threads offer more contact area, which leads to better load distribution and higher resistance to vibration loosening.
If the bolt has not been subjected to extreme stress or permanent deformation, it may be reused, but always inspect the threads for signs of wear before re-installation.
A standard open-end wrench, ring spanner, or a socket set corresponding to the hex head size is sufficient.
Verify that the pitch of the bolt matches the internal thread of the hole exactly; do not force it if resistance is felt.
Check if the torque specification was met; if the connection remains loose, ensure the mating surfaces are flat and compatible.
Ensure the socket or wrench is the correct size and fully seated; use a higher quality tool to prevent slipping.
Before installation, confirm that the female threads (tapped holes) match the specific fine pitch (e.g., 1.25mm or 1.5mm) of your chosen Unifix setscrew. Using the wrong thread pitch will result in cross-threading and permanent damage to the fastener or the component. Always ensure the mating surfaces are clean and free of debris. When tightening, apply lubricant to the threads if recommended by the equipment manufacturer to ensure accurate torque readings. To prevent corrosion in outdoor or high-moisture environments, consider applying a light coat of anti-corrosion spray, as the standard grey finish may require additional protection depending on the application.
