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CZ452 rear sight windage screws
Posted: Sat Apr 29, 2017 7:41 pm
by bhodge
By any chance does anyone know what size thread the windage sight screws are on the CZ452?
Thanks in anticipation....
Re: CZ452 rear sight windage screws
Posted: Fri May 12, 2017 6:29 pm
by 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.
Re: CZ452 rear sight windage screws
Posted: Fri May 12, 2017 9:27 pm
by ovenpaa
Is it M3.5 maybe? Also there are two 4mm alternatives.
Re: CZ452 rear sight windage screws
Posted: Sat May 13, 2017 5:31 am
by 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.