It took almost 400 years for the metal screw to evolve to the next level. In 1908, after a particularly nasty accident with a slot head screwdriver, the Canadian machinist, Peter Lymburner Roberston came up with an alternative design. A perfect square centered in the round head of the screw proved to be the ultimate solution to all of the Slot head’s problems. So I ask you, why do slotted screws still exists? They're pure evil. I'm trying to figure out who's behind keeping them in existence, but I can't imagine who would benefit? The only people I can imagine that would benefit is the band aid companies. Supplying bandages for all those knuckles that get gashed trying to force a slotted screw. Come to think of it, why do phillips screws still exist? Not as bad as the evil flat head, but not perfect either.
'Mericans sure are patriotic. They prefer the phillips, while the robertson is the screw of choice north of the border. There's only one righteous screw head, and that's the robertson. Henry Ford knew it. Each Model T manufactured in Canada was held together by about 700 Robertsons. Using Robertsons reduced the production time on each vehicle so significantly that Henry Fordwanted to use them on his American assembly lines as well. Ford, however, didn’t want to just buy the screws, he wanted to buy the rights as well, and when Roberson refused to sell, Ford turned to Philips.
Well at least we can agree that the only thing a flat head screwdriver is good for is opening paint cans. The injuries sustained while using this age old style of fastener isn't the only problem. There's the residual effects of throwing the screwdriver across your house when you finally snap after the 12th slip out of the screw head. Now you've gotta fix the hole in the wall you just made, listen to the wife go on about how stupid you are... it just goes on and on. Imagine how simple your screwdriver collection would be if there was just one type of screw head in existence. You would need 3 screwdrivers. Robbie 1, Robbie 2 & Robbie 3. Maybe a 4 and 5 if you're hard core. This would totally simplify the screwdriver and driver bit requirements.
In the new world, there will be one type of screw... the Robertson; (square head)
AND SO IT SHALL BE WRITTEN!