On Thu, 6 Apr 2017 13:34:05 +0000 (UTC), unk wrote:

I would like to be able to tell by colour if a screw has turned - does
that exist?

Low-strength/removeable...

Maybe a kind of varnish?

Fingernail polish works nicely as both a thread locker that will allow
the screw to be removed easily without extra effort, and it will show
if the screw has been removed or moved.

Works better than "locktite" for gun applications. And you can get it
cheap from the missus or the discount store.


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