Threads Used for Optical Components M34 x 1.0

I have been looking for engineering date for a M34 x 1.0 external thread to no avail. :banghead:

I can find data on M34 x 1.5 and M34 x .5 Can someone point me in the right direction or supply the major Dia.; Minor Dia. and pitch Dia. with the related tolerances.

Thanks
WMW