What does the NEC say about the 32 threads per inch on mounting screws for fixtures? We have used a #8 philips head self tapping screw because it works very good for cleaning the hole from drywall and stucco. Also we have had a lot of trouble from stripping out the head when there's junk in the hole. Its like a #8-24 thread. I have seen several referances to the 32 per inch, but no NEC reference.
Any help.
Thanks
Any help.
Thanks