Sorry... you think believing the Ancient Egyptians had electricity because those things look kind of like electrical insulators isn't nuts? Because I have news for you- two things can look alike and be totally different things.
This, for example, is not a petrified screw. It's a crinoid. A once-living sea creature.
I don't know what those Egyptian things are, but it is definitely nuts to assume they're electrical insulators just because they resemble them.