The problem of metric PL259's is well known in the UK at least , and
adaptors and 'metric' connectors are available from Ham Radio dealers.

73
Jeff

That may explain the problem I had with a couple of connectors . I was
able to borrow a die to run over them. The metric threads must be very
close to the SAE. After rethreading them they worked but I didnt like
the way the threads looked so i trashed them.


Yes, they normally do up most of the way and then bind just before the inner
part has mated with the serrated teeth, so it is easy to miss if you don't
check that the cable is not free to rotate.

73
Jeff