[DeTomaso] Nylocks in the Oil Pan

[Ken Green]

Ed,
   
      I can see how these are good in an engineered environment where the stud extends 2 threads past the nut every time, but isn't there a problem when you crank them down a ways on a stud?  if the nut is harder, it will try to retap the stud, and if the stud is harder, it will retap the nut?  They don't seem very forgiving in that sense.
   
      They are probably great for someone like you who deals with aircraft precision, I'm just not sure it's a fix all for the masses.
   
  Ken

"Edward A. Nauman" <enauman at adelphia.net> wrote:
  That's true to an extent. However, they will never loose the amount of grip
that a nylock does over time/useage. In any event nuts are cheap. If it
worries you, chuck 'em everytime. The steel types will give you more peace
of mind in either a one time use or multiple cycles...


Cheers,

Ed


Edward A. Nauman\
Senior Staff Engineer, Flight Test
Lockheed Martin Aeronautics
1011 Lockheed Way
M/S 0157
Palmdale, CA 93599

V: 661 572 7350
C: 661 305 7636
F: 661 572 3507




-----Original Message-----
From: Jim Hendrickson [mailto:chendric at bellsouth.net] 
Sent: Tuesday, April 10, 2007 7:57 AM
To: 'Edward A. Nauman'
Cc: detomaso at realbig.com; teampantera at yahoo.com
Subject: RE: [DeTomaso] Nylocks in the Oil Pan



The distorted thread style steel locknuts are also supposed to be a one time
use type nut. Each time that they are taken off and put back on they do lose
some of their grip.



-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Edward A. Nauman
Sent: Tuesday, April 10, 2007 8:45 AM
To: julian_kift at hotmail.com
Cc: garth_rodericks at yahoo.com; davidabell at worldnet.att.net;
Tborcich at msn.com; detomaso at realbig.com; oldwheel at mts.net;
teampantera at yahoo.com
Subject: [DeTomaso] Nylocks in the Oil Pan

Hey guys,

Personally, I wouldn't use nylocks on my lawn mower. The best locknuts
for any application involving oil and heat are the high temp aerospace type
nuts. These do not have any insert material like nylon, which softens with
heat. They are slightly crimped on the upside of the nut which creates the
necessary friction to prevent backing off. They maintain a grip in
temperatures way beyond what the oil can handle. They can be removed and
replaced several times with no loss in grip. If you tell me what size you
are talking about, I will send you the MS number and a couple of samples.

Ed


Edward A. Nauman\
Senior Staff Engineer, Flight Test
Lockheed Martin Aeronautics
1011 Lockheed Way
M/S 0157
Palmdale, CA 93599

V: 661 572 7350
C: 661 305 7636
F: 661 572 3507




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