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<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left><FONT
color=black size=3 face="Arial, Helvetica, sans-serif"><FONT size=4>What type
of threads are used on this compressor? If they are Acme threads you
cannot use a "Jam Nut" </FONT><FONT size=3><FONT size=4>since that thread is
designed to NOT lock up. <SPAN class=849122402-26122014><FONT
color=#0000ff size=2> </FONT></SPAN></FONT></FONT></FONT></DIV>
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class=849122402-26122014></SPAN></FONT></FONT></FONT> </DIV></BLOCKQUOTE>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left><FONT
face=Arial><FONT size=2><FONT color=#0000ff><FONT color=black size=3
face="Arial, Helvetica, sans-serif"><FONT size=3><FONT size=4><SPAN
class=849122402-26122014>Try it sometime. I think you'll find that they do
lock, just not as tightly as vee threads. With enough torque, they still
lock pretty tight.</SPAN></FONT></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left><FONT
face=Arial><FONT size=2><FONT color=#0000ff><FONT color=black size=3
face="Arial, Helvetica, sans-serif"><FONT size=3><FONT size=4><SPAN
class=849122402-26122014></SPAN></FONT></FONT></FONT></FONT></FONT></FONT> </DIV>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left><FONT
face=Arial><FONT size=2><FONT color=#0000ff><FONT color=black size=3
face="Arial, Helvetica, sans-serif"><FONT size=3><FONT size=4><SPAN
class=849122402-26122014>If you want a permanent joint that won't turn even
under extreme torque, drill a hole lengthwise through the threads and drive a
hardened pin into the hole. I used that on a hub puller I built
with 1" ACME rod (using a second nut to lock the first one during the drilling
process), and the nut/rod joint took all the torque I was able to throw at it,
even with a 1" drive impact wrench and standing on the end of a 6' section of
pipe. It literally crushed the rod lengthwise, but the nut never moved on
the rod.</SPAN></FONT></FONT></FONT></FONT></FONT></FONT></DIV>
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<DIV dir=ltr align=left><FONT face=Arial><FONT size=2><SPAN
class=849122402-26122014><FONT
color=#0000ff> </FONT></SPAN></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT size=2><SPAN
class=849122402-26122014> </SPAN>-- Randall
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