[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Pilot hole sizing for Type-F Thread Cutting Screws ? ? ?

Original poster: "Harold Weiss" <hweiss@xxxxxxxxxx>

Hi Dan,

Try a #25, at least that's the size for a 10-24 tap. Best to try an experiment to see if it will hold. I would think it would work, due to the screw leaving 10-24 threads behind once removed. I do remember that there is a different size used when drilling and tapping phenolic. (one number larger?)

David E Weiss


Original poster: "Mccauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>


Anyone know what the pilot hole size would need to be to use a 10-24
Type-F Thread Cutting screw.
My handy Machinist Handbook didn't seem to have the info in it (or at
least i couldn't find it)

Thanks
Dan