On Jul 15, 10:41*am, F. George McDuffee gmcduf...@mcduffee-
associates.us wrote:

In many cases the parts these produced were ******* metric/inch
as you describe with inch threads but metric
diameters/lengths/thread forms, with the inch thread selected as
close as possible to the metric size.

Yes. Consider BA - used by the Brits for years but actually metric!