On Wed, 27 Aug 2008 13:03:25 +0000 (UTC), "SteveBell"
wrote:

Square Peg wrote:

On Wed, 27 Aug 2008 02:58:09 +0000 (UTC), "SteveBell"
wrote:

Square Peg wrote:

I have several of Magnivision Titanium reading glasses. They are by
far the best I've tried, and I've tried just about every brand
there is.

http://www.magnivision.com/collection.cfm?catid=8

There is just one little problem. The nose piece and the side
pieces are attached to the lenses with tiny bolts with a tiny nut
on the inside. Over time (few months), these work loose. If I
catch them soon enough, I can tighten them and they will stay put
for another few months. If I am too slow, the glasses fall apart.

The ones for the nose piece are much more likely to loosen,
probably because they get wiggled more.

I have tried superglue, but it really doesn't hold.

Can anyone recommend a way to secure these nuts? If it is
permament, so much the better. I don't know why they don't use
rivets. I will never want to loosen these nuts.

Go back to your eye doctor. They'll tighten up the frames, then use
a special pair of pliers to squeeze the screw. The pliers have a
cone-shaped protrusion on one jaw that spreads the end of the screw.

You'll get a free cleaning and adjustment, if your doctor is any
good.

These are $20 reading glasses from the drug store.

Maybe I need a pair of those pliers. Do you know what they are called.
A search for "optical pliers" turned up a lot of choices, but not what
you describe.

In that case, I would get thee to thy workshop and judiciously apply a
center punch.

Now that's an idea. I guess it didn't occur to me because "glasses"
and "hammer" don't immediately go together in my mind. ;-)

It is a bit of a funny image. There is this old guy with faltering
vision and shakey hands trying to fix his reading glasses by aiming a
center punch at the end of a tiny bolt attached to said reading
glasses with a hammer in the other hand... Visions of glass shards.
Fortunately, the "glasses: are plastic.

Maybe I'll try the loctite first. ;-)