Soeren, I've done that, but my problem isn't the screw. My chassis is pretty small
I think I better not comment that
It's impossible to avoid that thin place because the heat of the solder melts the rubber.
Glad you found something that worked.
But... I never said you should heat anything - tinning an end going into a screw-terminal is bad (ought to be punishable really
) since the tinning takes away the springiness of the twisted copper, which is, after all, what holds the connection in place and the impedance low.
Anyway, you can buy crimp terminals like this
exactly for the purpose and you can buy some that is just the thin tube part.