Quote from: e-flite_rules on November 21, 2020, 13:32:22 pmWell my father was the clever one of the family. A medical doctor (and politician ).
Quote from: meharibear on November 21, 2020, 14:12:23 pmIs the grey considered inferior (I've never used it?
Quote from: gavin mack on November 21, 2020, 12:43:27 pmthese any good
Quote from: pooh on November 21, 2020, 12:34:50 pmI can't find the item I wanted to show, I've used them in the past for exactly the sort of job you want. The version I have used is a partially split brass cylinder with a rough outside (sharp points) and a female thread ending with a brass disc which is only partially down inside the inner - as you screw into the thread (with a screw!) it pushes the disc further down the inner, which forces the split cylinder to push hard against the plastic hole.
I bought these from one or more of my usual electronics suppliers (my day job is electronics) but I'm blowed if I can find them in RS Components or RapidOnline, largely because I can't work out how to describe them to the search engine!
these guys may be able to help