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The Range£8.28Visit shop Unifix Grade 10.9 Socket Csk Head Screws M6 X 12 - Box Of 200 - Grey
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The Unifix Grade 10.9 Socket Csk Head Screws are engineered for professionals and DIY enthusiasts who require high-tensile fasteners for heavy-duty assembly. Featuring a robust Grade 10.9 steel construction and a socket countersunk head, these screws allow for a flush, secure fit in metal-to-metal or machine applications. While they offer exceptional strength and corrosion resistance due to their bright zinc plating, they are specifically designed for environments where a flush finish is required and are not intended for wood-only structural framing.
| Colour | Grey |
|---|---|
| Model Part Number | 1261671 |
| Brand | Unifix |
Grade 10.9 is a classification of high-tensile steel indicating the screw has a tensile strength of 1040 MPa and a yield strength of 940 MPa, making it much stronger than standard hardware-store fasteners.
While the bright zinc plating offers some corrosion resistance, they are not intended for long-term outdoor exposure where they may be subjected to constant rain or salt air.
These screws require a standard metric hex key (Allen key) corresponding to the socket size.
Yes, because they are made from carbon steel for high tensile strength, they will be attracted to a magnet.
No, this product listing is for the screws only. Nuts, washers, or other mating hardware must be purchased separately.
Verify that the hole has been properly countersunk to the correct angle and depth.
Ensure you are using the correct size hex key and that the key is fully inserted into the socket before applying torque.
Check that the hole is free of debris or burrs; if the screw meets resistance, back it out and ensure it is perfectly aligned to avoid cross-threading.
To ensure the longevity and effectiveness of Unifix Socket Csk Head Screws, follow these guidelines:
