+- MetalworkingFun Forum (http://www.metalworkingfun.com)
+-- Forum: Machining (http://www.metalworkingfun.com/forum-5.html)
+--- Forum: General Metalworking Discussion (http://www.metalworkingfun.com/forum-6.html)
+--- Thread: UN VS UNJ threads (/thread-2461.html)
UN VS UNJ threads - mike-sid - 01-18-2015
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?
RE: UN VS UNJ threads - arvidj - 01-18-2015
More than you might want to know about it ...
http://www.threadcheck.com/whats-the-j-in-unj-screw-threads/technicalinfo/
... or maybe nothing that you really wanted to know ...
RE: UN VS UNJ threads - mike-sid - 01-18-2015
Just right. Good to know, how and why. but different they are.