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Hole dialog box & Thread dialog box show different Thread types-Bug?

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Message 1 of 7
gcross
3588 Views, 6 Replies

Hole dialog box & Thread dialog box show different Thread types-Bug?

I'd like to use an "NPT" Hole Dialog thread but it doesn't show up in the Thread type list.

But it does show up in the Thread Dialog/Specifications Tab/ Thread type list so it's available.

 

 

I definitely have "NPT" in my Thread.xls & I have my Options/Files set to point to the correct Design Data folder.

See 3 screen shots attached.

 

Anybody have ideas what's wrong & how to fix? Thanks.

 

Gary

6 REPLIES 6
Message 2 of 7
jletcher
in reply to: gcross

What is this I don't have this I do have NPT but not IPT.

 

What is.JPG

 

Here is mine Thread

Mine.JPG

 

Here is my hole

 

Hole.JPG

 

 

Message 3 of 7
jletcher
in reply to: gcross

LOL I see now you have to pick taper Tapped thread option in your hole dialog

 

Optione.JPG

 

 

 

 

Message 4 of 7
jletcher
in reply to: jletcher

When I went back to look at you jpg I see you did not have this picked by what threads it was showing is how I noticed.

Message 5 of 7
gcross
in reply to: jletcher

jletcher,

 

The IPT is a specialized thread used in the lighting industry. Those threaded pipes that go into table lamps use it. For example 1/8 IPS is actually same as 3/8-27 thread. It's based on pipe somehow but it still is not intuitive at all.

 

I was looking for the NPT thread for an electrical conduit nut part. It's definitely not a tapered thread on standard hardware store EMT electrical fittings. So that's why I didn't think to pick the tapered icon in the hole dialog. Guess it's just one of those trade specific threads for the electrical industry.

 

3/8 NPT

1/2 NPT etc.

In catalogs they just call it 1/2 or 3/8 without any letters.

 

US trade thread designations are as non intuitive as lumber designations!

 

Thanks for the help.

 

Gary

Message 6 of 7
mrattray
in reply to: gcross

NPT is always tapered. If it's not tapered, it's not NPT.

Mike (not Matt) Rattray

Message 7 of 7
Anonymous
in reply to: gcross

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