On 2007-09-18 11:22:34 +0100, John Rumm said:

Andy Hall wrote:

Gland packs come with a tag, an extra nut and a serrated washer which
fits over the 20mm threaded part of the fitting inside the box.

An earth wire can be soldered to the tag or fitted using an extra
crimped tag, bolt, nut and serrated washer through the small hole in
the tag

I must admit to being a fan of these:

http://www.tlc-direct.co.uk/Products/PRPEN20.html

You discard the backnut and solder tag, and use this much more
substantial nut in its place (which has small teeth on one side to grip
the inner wall of the box - allowing the gland to be tightened with one
spanner). You can then crimp a eye terminal on the end of your earth
wire, and screw it to the side of the new nut with the supplied screw.
Seems much simpler than needing to solder to a heavy tag "in the field"
so to speak.

Ah. Now those are a good idea.