Witworth metric or BSF (British Standard Fine) ?
mike
Mark Andy wrote:
> Howdy,
>
> Ok, I've been sorting out my nuts and bolts.
>
> What can I say, I'm an exciting person.
>
> However, I've run across a mystery bolt. Its got 32 tpi, but the
> diameter (thread peak to peak) is ~0.147". That's too big for a 6-32
> (max is 0.137) and not big enough for 8-32 (min is 0.157).
>
> Did they make a 7-32 thread?
>
> Its possible its metric (though the 32 thread guage fits really well)
> I suppose, but the common sizes in that range are 3.5x0.6 (diameter
> converts to 0.138") or 4x.7 (diameter converts to 0.157").
>
> This make sense to anyone?
>
> Mark
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