Anytime you use longer screws than the originals, you risk punching through the "screw insert" which may result in a hole into the core of the board = leaks water.
Unless you know the exact depth of the insert, you risk damaging the board.
To clarify what I am saying, there are small cylindrical plastic inserts set (glued/epoxied) into the board that the screws screw into. Generally, they are not much longer than the screws.
Formula 160; iSonic 111; HiFly Move 105; Tiga 263; '85 Mistral Superlight.
Maui Sails TR 11.0; 9.2; 8.4; 7.6; 6.6; Maui Sails Switch 6.0; 5.2; Maui Sails Global 4.5; 4.0.