Akyga® AK-CA-79 is a set of mounting screws. The set includes four galvanized steel screws. They are used to mount an ATX power supply in a computer case. The screws are characterised by a hexagonal washer head with toothed protection, which is intended to limit self-unscrewing caused by vibrations. Furthermore, the screw has a crosshead (phillips) for mounting with a screwdriver.