Working on a flat which has the ring run in old imperial sized metal conduit. The earth is via the conduit but at some point the single sockets have been changed to doubles and the male brass bushes have not been replaced hence no earth on the ring. Anyway, a long way of asking if anyone knows where I can find about 20 imperial male brass bushes, the spanner size is 11/16, or 17mm in new money.
Thanks
Thanks