In article ,
nightjar cpb@insert my surname here.me.uk wrote:
That was rather the point of the Unified thread - to provide something
that would work with both British and US standard threads, to improve
interchangability between allies during the war.

Don't think that's so at all. There are very few sizes where AC will fit
Whitworth - and none I know of where AF will fit BSF. They were
essentially new threads to a common standard.

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Dave Plowman London SW
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