Pipe thread question

[Brian129]

Hello,

I am a new member around here.

I found this thread, and it was very helpful in varifying what the G 1/4 thread is.

http://www.eng-tips.com/viewthread.cfm?qid=81635#post

My question is what is a ZG 1/4 thread?
I have it as a spec needed for a pressure sensor, and i am trying to varify what it is. It is coming from China.

It doesnt happen to be the same as a G 1/4?
Somehow I doubt this.

thanks,
Brian