> ...And, remember, that frameset is of British origin. > If anyone happens to know off hand whether there is > in fact a fairly common NON-metric bolt size slightly > smaller than a 5mm but with essentially the same threads > per inch please do let me know?
Well... in fact there is. It's a 10-32 machine screw, which is roughly the equivalent of 4.8mm x .794 mm per thread.
Sometimes, they're completely interchangeable, depending on how sloppy (or tight) the thread and die work is - or how worn the tooling is. Sometimes, they'e just close enough to get you in trouble.
By the way, in days of yore, Jim Blackburn used 10-32 fasteners in applications where you would expect a 5mm x .8 fastener to have been used. Maybe he picked up that little trick from some British fabricator/builder? Cheers, Fred Rednor - Arlington, Virginia (USA)
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