Question about Arctic Z2 Basic

Have you measured the difference from the centre of the screens? If not, and the 5 mm are where the screens touch, then it is sufficient to turn the screens a little. If the right one is lower, you have to turn it clockwise and the left one anticlockwise. If the left one is lower, it is the other way round: clockwise on the left, counterclockwise on the right.

If the difference in height was really caused by the centre of the respective suspensions, then it might help to loosen the centre screws a little, straighten them, hold them and tighten them again. Otherwise there is a product fault.