I bought a threading dial for a Sieg mini lathe off Aliexpress and modified it so I can use it on my Emcomat 7 lathe. The description of the item is "Thread Dial Indicator/Metal thread-cutting Chasing dial/SIEG C2/C3" and this was the link on Aliexpress:
https://www.aliexpress.com/item/32982282930.html?spm=a2g0s.9042311.0.0.27424c4dLXqfpX
The gear is 16 turn to match the imperial lead screw on the lathe. I machined a little spacer to shift the gear down in the body and also added a ring under the gear to take up slack. I also made a small sleeve to go inside the body to adapt from the 6mm hole to the 5mm needed to thread into the lathe.
