Club sport Hard mounting to a Gt omega art

Hi people I have had a look but search function not working right. I need to know what size bolts I need to hard mount v3 pedals, a club sport 2.5 base and a gear shifter to a Gt omega art rig, if anyone could help me I would appreciate it a lot. I have looked at manual for pedals and can’t find what size thread etc.

thanks very much everyone.