The post today bought a small package from the GWN across the pond.
A gift from a TEA addict .
Edit:: Thanks Kosmic
The content is a spare binding post to fix my SR1010 resistance trnsfer standard
Needs some careful work with a 3/8" spanner and deep socket. There is not much space between resistors. Fortunatly as I work on aircraft I have imperial deep sockets etc. Interestingly the nuts have one conical face. These go against the equipotential plate so there is a high pressure line contactrather than a flat surface the may only have a point contact if it is not flat.
I'm happy.
This reminds me of the tool I bought for work from RS Components to remove & fit nuts on potentiometers.
The listing on the packing slip was for an "Imperial Nut Spinner!"
When I read that, I couldn't help imagining it spoken in a "Darth Vader" voice.
Something like:-
"Use the Imperial Nut Spinner, young Skywalker!"