Metric or Imperial?

[Hair Bear]

Hi,
I was recently watching a video of a chap working on a petrol T20 in France. He cleaned the plate on it and showed it to state 'Hotchkiss'. Didn't give it a second thought until I noticed him use a metric spanner on something.
So, was that just chance, or were French built T20s, and I guess through to the 500s, assembled with metric fastenings?

[Charlietortoise]

I use metric on my te20. 19mm for example fits some of the bolts. Perhaps he just got lucky in the video.

[Hair Bear]

Hi,
I was thinking more about where there are tapped holes in castings - let's say the pickup hitch bolts in the bottom of the back axle - would a Hotchkiss built axle be tapped with metric threads where a Standard built axle would have imperial threads. And would that be consistent throughout the machine.
It was just a random thought on a slow news day.