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Incidentally, until much later, Ford worked to US standards in the US, and to Metric in its UK and German factories. When the company decided to build its first "world car" (long before the Mondeo) which would be built in all its worldwide factories, the company decided to change its US factories to Metric standards
Indeed. There was a time (late 70s/early 80s?) when Ford sold cars in the UK with metric, imperial and US fasteners. Fortunately, most of the UK/US stuff was just about interchangeable as I recall (Whitworth and UNC, or was that UNF? Too long ago now) The wonders of threadology!
Still happens today on Aircraft, buy any puddle jumper from Europe such as a Socata or Robin ( cringe) and the Airframe will be metric but the US produced engine will be A/F, UNC and UNF and have US Fasteners..