Tripod/Camera Screw Thread
"Andy Wade" wrote in message
...
Tim S wrote:
AF was quite common nomenclature about 20+ years ago, at least in the car
fixing circles...
... but meant "across flats" rather than "American Fine"?
IIRC 1/2" AF was 5/16" bolt usually UNC thread in my day but there was a lot
of whitworth and UNF about.
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