Screw for Toyo M45

[8x20]

Hi guys,
to the owners of a Toyo monorail 4x5 like a on old M45 or similar , do you know if there is a screw that is on the bottom where the tripod goes to be attached with a thread in mm instead of the one with the thread in inches?

I need to change it since the hole is much smaller for the screw of my old heavvy Gitzo.
I' m making a wonderful modification to get a 16x20 LF camera,you know....

Any tips are welcome
Thanks

[Dave_B]

The Toyo 45CX monorail camera I have has 1/4-20 and 3/8-16 threaded holes on the tripod mounting plate. There are no metric threaded screw holes on the base.
Cheers,
Dave B.