I’m American and even i can agree Robertson are the goat.
Phillips and flat suck. Not enough surface area on Phillips, resulting in stripped screws. And getting centered on flat sucks.
Robertson drive, just pop your driver in and it’s self centering, lots of surface contact to drive, and lots of meat on the head to prevent stripping. Anything more than 4 edges is unnecessary.
Flatheads are good for a few specific applications that require the head to have flat contact with the surface but not be tall enough to be something else like a hex or torx, but needing a lot of torque. They suck for everything else.
All IKEA furniture uses Pozidriv (no “e”, it’s a trademark). Not going to say if that’s good or bad, but operating a Pozidriv with a Phillips is always going to be terrible.
I agree. The vast majority of people don’t know the difference, and have never used a pozidriv driver with a pozidriv screw. It is a vast improvement imo.
A lot of those wacky screws exist solely to keep people from randomly messing with them. You have to really go out of your way the get the right tool for the job, and that’s if there even is one.
Like the one-way screws holding together bathroom stalls.
Yup, I’ve noticed that spanner screws (the two dots) are usually found on elevator control panels. There is no reason that somebody should be able to open those up with a Swiss army knife.
I’m seeing a lot of people here claiming that the Philips head was originally designed to cam out/strip to prevent a transfer of force sufficient to twist the head off. While I agree this does sound logically plausible, I could find no reference to such features in the original patent: …storage.googleapis.com/…/US2046837.pdf 🤷♂️
Yup. “Cam action” is only mentioned in the context of the wedge shaped driver/bit squishing out any crud that had lodged itself in the screw. The entire idea was self-centering and better engagement between the driver and screw due to the wedging. The fact that it failed more gracefully is a side benefit at most, and more likely just sales fluff to compete against Robertson.
To be fair, I have snapped a few Robertson in my day, certainly higher by percent than the number of Phillips I’ve used, but that’s more than balanced out by the huge number of crappy Phillips heads that have been almost as totally ruined by camming out under fairly normal use with a properly fitted driver.
I hate slot screws because they are easy to slip out of, and the place that I find them the most is always outlet covers. Like… What the fuck? Why are you gonna put the most easy to slip out of screw next to the most dangerous to slip into hole?!
I don’t think I’ve ever heard that fastener called an Allen bolt, just the tool (Allen key). I’ve generally heard them called hex sockets heads. Maybe it’s a regional thing?
In Dutch they are called “inbus”, which apparently comes from the German name “Innensechskantschraube Bauer und Schaurte”, where Innensechskantschraube means inside six sided screw and Bauer und Schaurte is the company who patented the screw type.
That’s not true when working internationally, since it can have different names in different nations. In Italy is Brugola, in Germany Inbus and in other places it has other names. Everyone understands what a hex key is though
They can take more torque, don’t cam out when screwing and most importantly can’t be damaged easily by constantly using the screw, unlike Philips which fucks off after second attempt.