Pavel314 wrote:
This is a general question, not for a specific application. It popped
into my head while working on a minor home remodeling project last
night. Has anyone had occasion to cut threads into a wooden hole
using a tap?

Yes, numerous times. In sizes ranging from 8-32 to 1/2-20. As long as you
are going cross grain, they work out fine. Going long grain is less good
because the treads are weak and break off easily, even while tapping. One
can get around that but not easily.

FWIW, the mahogany head of my cane screws onto the hickory shaft. All wood
threads. I made it 2-3 years ago, still as good as gold. It's removeable
because I have other heads...if I get bored with mahogany I can use walnut,
sap hickory or sap hickory stained black. I also have a black hickory shaft
for more formal occasions. Like funerals

It seems like a good hardwood, like oak or maple, would take the
threading better than pine. If you don't torque the bolt down too
tightly, or remove and reinstall it too frequently, it shouldn't wear
out the threads for a long time. Or you could use a Teflon bolt. Or a
wooden one, if there is such a thing.

Do you think that a bolt in a threaded hole would last longer than a
screw which is removed and reinstalled infrequently?

No idea. You can improve the longevity of either by hardening the inside of
the hole with super glue.



--

dadiOH
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