Why do we still use different screw heads? Aren't four

M4 handle screw, flat head with combi-cross slot, L=23 mm, zinc cross slot screw *CROSS SLOT SCREW BITS PH 3 LUX 104183 · Description · Related products · GRINDING STONES LUX 6mm 102958303168 · ROUTER BIT MILLING 6mm cross slot gebraucht Machine Screw Special Thread , Pitch 30mm, Head

crossslot keys in request don''t hash to the same slot What bitscrew type is this? Cross shape, but slots are wider than usual, no 45 degree slots