Even in my mondo bag of spare computer screws I don't have a screw long enough to pass through the fan frame and into the case. Haven't a clue why they'd do it that way since fan mounting has been standardized for a very long time.
Cheap; Looks nice; I like power supply top mounting - not at the bottom
My only complaint is that the front panel fan mount holes are actually small threaded holes the same size as motherboard mounting screws instead of the standard wider holes that accommodate the normal fan mounting screw that bites into the fan frame; Case did not include screws that would work