[werkzeugbrecher]

Hello

I’ve got a problem.
A customer wants – certainly as fast as possible – to have a model of a tube section with an NPT thread 1/2”.
But I don’t have a gauging ring.
I could measure the thread, but u need exact values therefore.
I found the following in the internet:
p= 1,814mm ( 14/25,4)
D=21,223mm
Core hole 17,4mm
Cone 1:16
Flank angle 60°

But I also need flank diameter and distance of the reference surface. Can anybody help?

Thanks in advance

Daniel

[CNCFanatiker]

Hello Daniel,

Look here
http://www.unifiedalloys.com/products/pdf_...ipe_threads.pdf
it’s a nice overview table with everything you need (inches and millimeters)

[werkzeugbrecher]

Hello Fanatiker,

It’s great! Thanks a lot.

I was searching 2 hours long and didn’t find anything.

Thanks!

Daniel

[CNCFanatiker]

Hello Fanatiker,

It’s great! Thanks a lot.

I was searching 2 hours long and didn’t find anything.

Thanks!

Daniel

You’re welcome

I went to the English site because the norm doesn’t really have a German root.