If the Genuine Aircraft Hardware catalog is correct, that's an 80 ksi fastener. If it were in low carbon steel, cadmium plated, it would only be a 60 ksi fastener. The Phillips indentation on the head will wear quickly. It would be better to find a screw that's at least 125 ksi or higher.
(Ksi means 1,000 psi, so 80 ksi = 80,000 psi. This is the strength of the material, and for steels, it's fairly low).
Dave
Not specified as AN, but these may well be adequate in a non structural application. (I have no connection to either source other than being a satisfied customer.)Tried the search function to no avail. Specifically, I need AN526C-632 stainless screws with a black oxide finish. I tried painting with poor results. Tried McMaster-Carr, no joy.
Jerre
The cardboard/centerpunch trick for sure, but also glass bead-blast them before painting. Paint adheres much better to a non-shiny surface.