CZ452 rear sight windage screws

[bhodge]

By any chance does anyone know what size thread the windage sight screws are on the CZ452?
Thanks in anticipation....

[bhodge]

To answer my own question....
The thread is close to 4mm, but it won't accept a 4mm grub screw. I couldn't find a screw that would fit, so the only alternative was to re-tap the threads, and fit a standard 4mm grub with a .7mm pitch.
A nice easy fix.

[ovenpaa]

Is it M3.5 maybe? Also there are two 4mm alternatives.

[bhodge]

I'm thinking that the thread could have been 4mm with a .5mm pitch. This would have allowed finer windage adjustment, but in the event I couldn't find suitable windage screws which is why I decided to go for the more common .7mm pitch type.