In a message dated 9/18/02 5:58:49 AM, RAlanen@AOL.COM writes:

<< I have been supplying and using the stainless steel nylock nuts 

with the (exhaust system parts) now for some time.  

No problems.  The nylon will melt that's for sure but, it keeps the nut from 

backing off. >>

This is just utterly inane.  It is the fastener tension not the soupy nylon 
which is keeping things together.  Nylon-insert locknuts are rated for a 
maximum service temperature of 250 �F MAXIMUM.  Now, is it remotely possible 
that any of the exhaust system components reach a temperature which exceeds 
this maximum?  What is called for in this application is a deformed thread 
locknut.  Just because RAlanen cannot source deformed thread locknuts in 
stainless does not make elastic locknuts any more suitable for the job at 
hand.  A little bit of knowledge . . .

George