Anyone using a 10.2 x .5 tap?

[MartinPens]

I have a piston fountain pen part that is threaded with 10.2 x .5 on one end. Anoyone know where I can find a 10.2 x .5 tap?

 

[frank123]

That may be a hard one.

You might try a 10 x .5 in a loose hole to see if that would work if you can't find one. (10 x .5 if fairly easy to find, Ebay or industrial fastener suppliers and such)

 

[Dalecamino]

That's a new one on me Martin. I suspect it's one of those exclusive to the MFG.

 

[BRobbins629]

At times like these it's nice to have a CNC

 

[katanensis]

Well I know where you are coming from... Schmidt piston filler!!!
It's a month that I'm going crazy with it, they say that the front is 10x.5, i bought a 10x.5 tap, threaded the section and it will not fit! So I get me the 10x.5 die, reworked the thread and now fits fine.
on the back, I was thinking to rework the thread to a 10x.5, but the metallic part has a too big diameter to let the die in... so I'm stuck.

 

[MartinPens]

My exact issue. But... The back section will come apart if you unscrew it. It's getting everything back together after that, though, that's a pain. I've ruined one and decided it wasn't worth it.