Torx is favorite for sure.
Square for SS when I can’t get Torx or starr.
Hex male or female. I do like the hex head w flange as if it had a washer. Widely available in galvanized.
To soften the hate of slots they are much more usable w a good hardened driver that will hold it’s edge. Actually if you have a new screwslot and really good driver one can put a lot of torque to the screw w good fwd driver pressure. One can easily dig paint out of the slot too and that can’t be said for socket slots square, starr or hex.
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Eric
North Western Washington State USA
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