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The Unifix Supertite Thread Forming Screws (M5 x 12) are essential fasteners designed for professionals and DIY enthusiasts working with metal applications. These screws excel at providing a robust, vibration-resistant hold by creating their own threads during installation, which significantly reduces the likelihood of stripping. While they offer superior grip in metal, users should note they are specifically engineered for metal-to-metal or metal-to-hard-material fastening and are not suitable for wood or masonry projects.
| Colour | Grey |
|---|---|
| Model Part Number | 1262863 |
| Brand | Unifix |
No, these screws are specifically designed for thread-forming in metal and will not provide a secure hold in wood or softer substrates.
Yes, unlike self-drilling screws, these thread-forming screws require a pre-drilled pilot hole to function correctly.
The screw length is 12mm, ideal for thin-gauge metal projects.
While it is possible to remove and replace them, they are intended for permanent fastening; repeated removal can compromise the integrity of the formed threads in the metal.
M5 refers to the metric diameter of the screw, which is 5 millimeters.
Check that your pilot hole is the correct diameter; a hole that is too small will cause excessive friction and potential snapping.
The pilot hole is likely too large for the M5 screw. Use a smaller drill bit to ensure the screw has enough material to form its own thread.
Ensure you are using the correct size hex driver bit and applying steady, downward pressure to prevent the tool from slipping.
To achieve the best results, ensure the pilot hole diameter is precisely matched to the manufacturer's recommendation for M5 thread forming; if the hole is too large, the screw will lack sufficient grip, and if it is too small, the screw may snap during installation. Use a manual or low-torque power driver to avoid over-tightening. These screws feature a grey finish; to maintain their structural integrity, avoid exposing them to highly corrosive or acidic environments unless they are additionally treated with a protective coating. Always keep the threads clean of metal shavings before driving to ensure a smooth, secure seat.
