On Feb 16, 7:27*pm, Christopher Nelson wrote:
I have a wall fixture that's held up with two machine screws. *I'm
changing the way it's mounted and need shorter screws. *But the screws
are smaller than a #8/32 and bigger than a #6/32. *I even tried metric
and couldn't find a match. *What size might this be?

Chris-

As many have suggested ...cut the screws with the threaded hole "screw
cutters) that are present on most good pair of wire strippers.

Also as many have suggested..... "chinese 8-32"

A proper 8-32 is about .163" to .157" od

a 4mm screw is about .157" to .151" od but the standard thread pitch
(mod) is .7mm per thread which is about 36.3 tpi


so I'm guessing that the Chinese mfr just uses the 4mm cold headed
blank and tweaks the threading machine to do 32 tpi instead of 36.3.

The result is "close enough"........ a screw that threads into a
standard 8-32 hole but is rather sloppy being about .005" to .010"
undersized.


cheers
Bob