Best current price£7.76from eBay
Shopping.co.uk recommended and popular offers
eBay£7.76Visit shop Unifix Machine Screws Pozi Csk Head M6 x 20 - MMS206 020CR3
Visit shop
Debenhams£7.81Visit shop Unifix Unisex Silver Machine Screws Pozi Csk Head M6 X 20 In
Visit shop34 offers from £7.76 - £14.32
View price history by clicking the chart icon.
The Unifix Machine Screws Pozi Csk Head are precision-engineered fasteners designed for professionals and DIY enthusiasts who require reliable, flush-fitting connections. These screws feature a Pozi countersunk head to minimize cam-out and a bright zinc-plated finish for added corrosion resistance, making them ideal for long-lasting mechanical assemblies. While these screws provide exceptional grip and strength, users should ensure they are using the correct Pozi drive size to prevent damage to the screw head during installation.
| Colour | Grey |
|---|---|
| Model Part Number | 1261754 |
| Brand | Unifix |
Pozi drives have additional small cross-lines in the recess, providing a better grip and reducing the risk of cam-out compared to Phillips.
They feature a bright zinc-plated finish which offers moderate corrosion resistance, but they are primarily recommended for indoor or sheltered outdoor use.
This is a German industrial standard defining the dimensions and manufacturing specifications for countersunk cross-recessed machine screws.
Yes, machine screws typically require a pre-drilled and tapped hole or a nut for fastening.
If the threads and the screw head recess are not damaged during removal, they can generally be reused.
Ensure you are using a genuine Pozi-drive bit rather than a Phillips bit and check that the pilot hole is correctly sized.
Verify the depth of the countersunk hole and ensure no debris is trapped beneath the screw head.
Check the thread alignment and ensure you are not cross-threading; apply a light lubricant if working with tight metal tolerances.
To ensure proper installation, always use a correctly sized Pozi screwdriver bit, as using a standard Phillips bit can damage the screw recess. Prior to installation, ensure the mating surfaces are aligned and, if necessary, counterbore the material so the screw head sits flush.
These screws are compatible with standard metric threaded nuts or pre-tapped holes. While the BZP finish is durable, avoid using these screws in highly corrosive or marine environments where stainless steel fasteners would be more appropriate. For maintenance, check tightness periodically during routine inspections of your assembly, especially if the machine is subject to high levels of vibration.
