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UN VS UNJ threads

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UN VS UNJ threads
mike-sid Offline
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#1
01-18-2015, 09:25 PM
I'm threading a part for my mill. My full forming carbide inserts for my lathe are labeled 24 UNJ ( 16 ER 24 UNJ) all my other inserts are just UN. Like 20 UN (16 ER 20UN). What's the difference between UN and UNJ threads?
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arvidj Offline
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EdK (01-19-2015)
#2
01-18-2015, 10:00 PM (This post was last modified: 01-19-2015, 08:50 AM by arvidj.)
More than you might want to know about it ...

http://www.threadcheck.com/whats-the-j-i...nicalinfo/

... or maybe nothing that you really wanted to know ...
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mike-sid Offline
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#3
01-18-2015, 10:11 PM
Just right. Good to know, how and why. but different they are.
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