Lets face it, set construction is all about screws.
In the beginning was the slot-head screw. Yes, even in the days when screws were individually hand made, they had a shallow slot gouged across the head that millions have sworn was purposely designed to make screwdrivers slip. Innovation came from Dutch electronics giant, Philips. Whatever, the Philips screw was self centring, making it much more useful for ratchet or powered screwdrivers. A development of the Philips screw was the superscrew or twinfast screw.