"self-locking nuts"

Kneale Brownson knotnook at traverse.com
Tue Jan 4 22:14:50 EST 2005

Self locking nuts generally have a nylock or similar part to them that
keeps the nut from backing off.  It's not a "stretch" thread.  Once turned
onto a bolt and back off, some of the retaining feature is diminished.  For
safety sake on driveline parts, I'd get new lockers.

At 09:28 PM 1/4/2005 -0500, Lyle Seaman wrote:
>I'm planning to replace the oil seals on the rear differential of my 99 a8.
>Bentley's says "self-locking nuts must always be replaced."  Is there
>anything special about these except that they're pre-treated with a
>thread-locker?  Can I just clean them and use a little Loctite, or do they
>really have a stretch thread? Not looking forward to paying the dealership
>one finger for each bolt...   Maybe I'll just get used to topping off the
>rear diff every time I change the motor oil :(
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>quattro at audifans.com

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