Our dead pixel policy follows the industry standard.
Typically, dead pixels are not classed as a fault, unless there are a lot of them or they are clustered close together. Manufacturers comply to the ISO 13406-2 standard, which relates to the acceptable number of dead pixels based on screen size and resolution. As such, any monitor with dead pixels equal to or less than those defined within the ISO 13406-2 standard will not be accepted as faulty, as the manufacturers do not deem them as faulty.
You can look up specific brand and model information easily in search engines, typing in ISO 13406-2 and the monitor brand name. It is always worth checking with the manufacturer first, especially if the order was placed over 30 days ago.
All monitors sold at Overclockers UK are Class 2, meaning they are not deemed for professional use. As such, they will likely follow this general ruling of what is an acceptable amount of issues per monitor:
Number of stuck pixels per million pixels on monitor: 2
Number of dead pixels per million pixels on monitor: 2
Number of stuck subpixels per million pixels on monitor: 1-5
Number of dead subpixels per million pixels on monitor: 1-10
A dead or stuck pixel refers to all three subpixels (RGB), whereas a subpixel is the single colour that is off or stuck.
As an example: The LG 27" 27GP850P-B Gaming Monitor has 3,686,400 pixels. For there to be considered a fault with this monitor, there would need to be more than 7 dead pixels.
For more information, there is a detailed breakdown of the ISO 13406-2 policy on Reddit:
https://www.reddit.com/r/ultrawidemasterrace/comments/176aptn/the_ultimate_pixel_defect_information_and/
If you are unhappy with the number of dead pixels on your screen but it falls within the accepted number, you can still return your monitor within 14 days. This would be classed as an Unwanted Return though, rather than a faulty return.