If you are talking about those screws that are supposed to work with Phillips, square, and flat heads but none of them work well... ECX bits are designed for them and do work well. Common in AC electrical stuff.

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These are the two most common screws in the RV. I have probably re-used each of these fasteners multiple times already during my perpetual renovations.

All I'm saying is that if they were straight up Phillips I would have stripped them long ago but with the Robertson option they remain useful.

Both are self drilling too, very handy.

Interesting. They look like Phillips somebody already butchered at first glance.

Yeah that was what I thought at first glance but they're actually like a Robertson screw first with Phillips as a weak second option. The fit on the R bit is perfect, holds snug without magnetism. I actually have worn out some real R screws in less time than these ones are lasting. Better metal I guess.