UNJ Thread Fatigue Data
UNJ Thread Fatigue Data
(OP)
Does anyone know where I can get thread fatigue data/curves for internal and external UNJ threads? The only data we have been provided by our customer is from the UK with no reference to thread type. Thanks in advance for the help.





RE: UNJ Thread Fatigue Data
http://www.astm.org
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: UNJ Thread Fatigue Data
If you have thread fatigue data curves
for other threads, the internal thread
would be the same as no radius is required
for internal threads. The outer threads
because of the root radius would have
a better thread life or curve.
The above url is a good site for thread info.
RE: UNJ Thread Fatigue Data
Chad Hendrix
RE: UNJ Thread Fatigue Data
http://www.fatiguecalculator.com/index.htm
RE: UNJ Thread Fatigue Data
I had not run across that in my internet searches. It looks interesting and may be useful. Thanks for the help.
Chad Hendrix
RE: UNJ Thread Fatigue Data
Here is table that has some fatigue loading values for Grade 8 bolts, unknown thread form.
ht
Another article I had marked.
http:/
Interesting articles. Look at (67020)
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