Also, can't you test for a fixed-thread arrangement by unscrewing it
 partway and trying to jiggle it?  If it won't jiggle, then the nut is
 welded or the threads are somehow secure, right?

 Outdoor Technologies wrote:
 >
 > When I added a third seatbelt to my Westy's rear seat, I found that
the
 > seatbelt anchors screwed into nuts that were welded to the car.
Seats are
 > probably the same.
 >
 > On Thu, 17 Jul 1997, Chris Holtz wrote:
 >
 > > In the camper the rear bench seat box frame is fixed to the body
via
 > > three shiny brass 13mm bolts.
 > >
 > > I'm tempted to extract one of these bolts, insert an anchor hook
that I can
 > > tether my child's carseat to, and then reinsert the bolt.  Looking
 > > underneath the camper I don't see any bolts coming through the
floor
 > > near where these ones go in.
 > >
 > > If I remove the bolt will I be able to easily put it back in?  Or
will I hear the
 > > sound of a nut falling away into the depths and then end up with a
loose
 > > rear seat?    Will I need a longer replacement bolt (the anchor is
about a
 > > computer diskette in thickness)?
 > >
 > > Your help would be appreciated.
 > >
 > > Chris Holtz         '84 Westfalia - "Gromit"
 > >
 > > B.T.W. - Volkswagen of Canada/America told me over the phone that
 > > '84's were not designed for the extra tether of a Canadian
carseat.  They
 > > also would not recommend a workaround because they didn't want to
be
 > > held liable.
 > >
 > >