Mac Motor Axle Thread Guage?

[kudos]

I have one of the newer Mac motors with the 12mm axle not the older 14mm.

I have lost one of the axle bolts but I can’t find what the gauge is anywhere.

I’ve bought and tried:

M12 Standard Thread
M12 Fine Thread 1.25m
M12 1.0mm

Nothing fits.

Does anyone know what the correct size is?

I don’t currently have a measuring gauge set but hopefully someone on here should know?

 

[kudos]

Just in case anyone else needs this information in future, turns out the correct size is indeed M12 Fine Thread 1.25mm

Vendor had originally sent me the wrong thread gauge, but I didn't know until I got a thread gauge and measured it.