I need to retap something up to the next closest american thread. It was threaded 3 mm. Would that be a 4-40? Thanks, Ron
- posted
18 years ago
Next tap size up from 3mm
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- posted
18 years ago
3mm is .118". A #5 screw is .125". Randy
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18 years ago
Do they make a #5 tap? Would it be hard to find a #5 set screw? Ron
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- posted
18 years ago
Note that a #8 is the smallest size that will have a core diameter greater than 3mm. This could make for a better thread.
Mark Rand RTFM
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- posted
18 years ago
Unless he uses a form tap. 6-32 or 6-40 would be doable. Perhaps an insert could be used. IIRC, the drill size for a 4-40 STItap is right close to 3mm.
michael