Yes. And smaller. Any machinist supply will have them. The ever popular
McMaster-Carr, MSC, et al. I get tools from Western Tool quite often,
and have many times gotten better pricing than the same or like item
from MSC. Nation wide chains don't always have the best prices. The
smaller guys need the business too, and can be very competitive.
Following MMC's chart for thread-cutting taps so the drilled hole will be
undersized for form taps. The material is 1/16" aluminum sheet so I'm using
either taper or plug (where tapers aren't available) taps. In tests, cut
threads are reamed if screws are intentionally overtightened but formed
threads hold up nicely. The only downside to using an undersized hole in
this case seems to be more chip cutting during the forming process. Again,
we're talking thru holes in 1/16" aluminum.
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