Thread size on Kaweco nib housings?

[Carl Fisher]

Does anyone know the thread size on the Kaweco nib units? The price point is nice for a mid-priced kitless lineup.

 

[Brooks803]

I can tell you they DON'T match any of the other nib units (bock, Jowo, Schmidt)

I've got a few here at the house that I bought to try out.

 

[Carl Fisher]

I was afraid of that. Wonder if it's a common thread or a one-off like the esterbrook.

 

[BSea]

You might PM watch_art. If anyone on here knows, it's probably him.