And a bit of loctite applied first?
Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
Harry Bloomfield; "Esq." wrote in message
...
Last time I used the car, as I parked up in my garage back home, one of
the lenses of my driving glasses fell out, just as I removed them. The
clamp screw had udone itself, releasing the lens. In a bit of a rush, I
just tapped myself down, hoping the screw would land on my seat, so I
could find it later.

Getting the car out yesterday, I realised I forgotten to deal with the
problem, so I searched the seat, the car floor and the garage floor
without finding the missing screw. I grabbed the glasses and lens, to take
indoors to see if I could find another to fit, only to find the missing
screw still caught in the frame. All it needed was the lens put in place
and the screw tightened into place.