From my long ago youth futzing around in a tool and die shop, I recall, there is also a (rarely found) 5-40 ANSI thread
Sure enough:
-Dale
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On Mar 17, 2025, at 19:14, Don Bitters via groups.io <donbitters@...> wrote:
If the unit is English then the screws are 4-40, 6-32, and 8-32.
If the unit is metric then the screws are 2.5 mm, 3.5 mm, and 4.0 mm
