Best current price£7.41from The Range
Shopping.co.uk recommended and popular offers
The Range£7.41Visit shop Unifix Grade 12.9 Socket Head Cap Screws Din 912 Plain - M5 X 10 (Box Of 200) - Grey
Visit shop46 offers from £7.41 - £28.12
View price history by clicking the chart icon.
The Unifix Grade 12.9 Socket Head Cap Screws are engineered for professionals and DIY enthusiasts who require maximum holding power in mechanical and structural assemblies. These high-tensile fasteners offer exceptional durability under extreme stress, making them ideal for heavy-duty machinery and industrial construction. Users should note that because of their high hardness rating, they are specifically intended for high-load applications and may be overkill for light-duty domestic fixtures.
| Colour | Grey |
|---|---|
| Model Part Number | 1355361 |
| Brand | Unifix |
Grade 12.9 is a high-tensile steel rating indicating the material has a minimum tensile strength of 1200 MPa and a yield strength of 1080 MPa.
They are designed for industrial use but may be prone to surface oxidation in damp outdoor conditions if not treated or painted.
Yes, provided the threads are not deformed and the socket head is not damaged or rounded during removal.
You need a standard hexagonal Allen key (hex key) sized appropriately for the specific screw diameter.
While often used without, a washer is recommended if the mounting surface is soft or if you need to distribute the clamping force over a larger area.
The socket may be stripped or you are using the wrong size key. Verify you are using a metric Allen key and that it is fully inserted into the head.
Check the thread pitch and diameter match the tapped hole exactly. Ensure the hole is clear of metal shavings or rust.
For installation, ensure you are using a high-quality steel Allen key that matches the socket size of your specific screw to prevent rounding the internal walls. Always ensure the threaded hole is cleaned of debris before insertion. It is recommended to use an anti-seize compound if the screws are being used in a machine that generates significant heat, as this prevents permanent seizing. For long-term maintenance, perform visual inspections during routine machinery check-ups to ensure the tension remains consistent. Keep the screws in a dry environment to prevent oxidation.
