as part of an external swa cable gland set, there comes a copper washer with a tab sticking out, kinda shaped like a magnifying glass. Do they have a specific name? I could do with buying a few in a pack, without having to buy the rest of the gland too..
http://www.screwfix.com/p/tower-external-gland-kit-20s-ip66-pack-of-2/25996
http://www.screwfix.com/p/tower-external-gland-kit-20s-ip66-pack-of-2/25996