Translating points in ICEM and loosing accuracy
 

What can I do? When I translate a point in ICEM I normally get approximated value when taking the measurement instead of the exact value translated. (example translating two points to a 98mm distance, after the translation when I take the measurement I can get 98.00004567 for one and the other 97.999999546. This eventually gives me problem when I am imposing periodic boundary conditions on my boundaries since they do not have the same value.
Thank you

This is due to the tolerance of your model.

Anyway, what should be the size of your smallest mesh elements ? That's what really matters.
Because the difference between your 2 points is about 5.10^(-8) m. So if you smallest mesh elements is around 1.10^(-4) m, the mesher wouldn't "see" the gap between your 2 elements.