They're probably "stretch to yield" bolts - lots of them in modern cars.
Should be readily available at your local dealership.

On Dec 18, 2007 8:03 PM, Allan Streib <streib@cs.indiana.edu> wrote:

> Well I'm not doubting what you say about not ever having a failure,
> but there was SOME reason the engineers went to the trouble of
> stating "always replace" on these particular nuts.  They didn't just
> toss that in there for fun.  So, either they're a special single-use
> design of some sort, or they are ordinary nuts but for some reason
> they still should not be re-used.  Maybe new ones come pre-coated
> with thread-locker or something?
>
> I just looked at the ones I removed and they look absolutely ordinary
> to me.  I'll probably re-use them, but put some loc-tite on them just
> to feel better.
>
> Allan
>
> On Dec 18, 2007, at 10:37 PM, Scott Daniel - Shazam wrote:
>
> > I guess I'm going to die just any day now when my steering nuts and
> > bolts
> > fail from being reused.
> > Steering bolts and nuts are made extremely well.  Steering is even
> > more
> > critical that brakes actually.   I have put hundreds of those back
> > together
> > with the same fasteners. And I darn sure wouldn't be replacing
> > original
> > german parts with anything from a hardware store !
> >   If you put them back together carefully and good n'
> > tight.........the
> > chance of them failing is nil.  Unless you do something dumb like
> > don't
> > tighten properly, or extremely over tighten them etc.   I might
> > make a lot
> > of things tighter than the published toques btw, sometimes they'll
> > have like
> > 18 ft. lbs on a bolt and that's not much at all.  It depends.
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
Crescent Beach, BC
www.crescentbeachguitar.com
http://subyjake.googlepages.com/