Best current price£15.19from The Range
Shopping.co.uk recommended and popular offers
The Range£15.19Visit shop Unifix Supertite Thread Forming Screws M6 X 12 - 4Smh6.0 12Cr3 - Box Of 500 - Grey
Visit shop24 offers from £15.19 - £34.93
View price history by clicking the chart icon.
The Unifix Supertite Thread Forming Screws M6 x 20 are designed for professional contractors and DIY enthusiasts who require reliable fastening solutions for metal applications. These screws offer superior grip and high-strength holding power through a specialized thread-forming design, though they are specifically engineered for metal substrates and may not be suitable for wood or masonry without pre-drilling or specialized anchors.
| Colour | Silver |
|---|---|
| Model Part Number | 5014196174747 |
| Brand | Unifix |
These are thread-forming screws, which generally require a properly sized pilot hole to achieve the best grip and prevent material deformation.
No, these are specifically engineered for metal applications. Using them on wood will result in poor holding strength.
You should use a hex socket driver compatible with the M6 hex washer head.
They feature a silver finish that provides basic corrosion resistance, but they are not classified as marine-grade or stainless steel.
Each box contains 500 units.
Verify the diameter of your pilot hole; it may need to be slightly larger to allow the thread-forming process to occur without excessive resistance.
Ensure you are using the correct size hex socket and that your driver is set to a moderate speed rather than high-speed/impact mode.
The pilot hole may be too large. Check the material thickness and ensure it matches the technical requirements for an M6 thread-forming fastener.
To ensure the longevity of your assembly, always use a properly sized hex socket driver to prevent cam-out or damage to the head. While the silver coating is durable, avoid using these in highly corrosive or saltwater-prone environments without additional surface protection. Store in a dry environment to prevent premature oxidation of the threads. For optimal compatibility, verify the thickness of your metal target before installation to ensure the 20mm length provides full thread engagement without protruding dangerously from the rear.
