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Turns out the laws of physics and geometry are the same everywhere.
Even in fictional universes that have wizards in space with swords made of light?
Yes!
Thought it was gonna be the Phillip’s head strip
Its all fun and games until the Canadians show up.
As an American, we made a mistake in not adopting those. Torx or whatever isn’t even as good.
Torx is better than whatever this Canadian abomination is. You’d only put pressure on the corners in a realistic setting. These would get rounded so fast unless they are massive, like on some differentials or gearbox oil drains.
This guy mechanics
Indeed torx is so good because it attempts to maximize the surface where pressure is applied to. This is good on smaller sized bolts that are more prone to being rounded, but especially amazing when removing bolts that may have been exposed and potentially corroded
Hex was for that before.
Yeah, hex is very nice but torx is improvement over it.
I have not checked on it, but I’m like 97.25% sure wood screws jumped from Philips to torx however because of corrosion resistance. Hex is very easy to round already as is on smaller sizes, but even more so if the head is exposed to elements and corroded. Of course material matters a lot, but even stainless corrodes over time.
Torx has to be very, very bad condition for it to round, it’s more likely for the screw to snap
Sorry for drunk rambling but I really like bolts. And bearings for what it’s worth
Curious how “really like bolts. And bearings!” is working out on your Tindr profile?
Luckily I’ve never had a tinder profile. And my wife liked my nuts so we’re good
Never had or seen a stripped Robertson, they are robust AF. Don’t ask me the physics. (They go deep into the screw head because of the simple shape, maybe that has part of it. And they are tapered, it’s not just a square, so they manage to grip the bit like a mofo. You don’t cam out of a Robertson.)
Ironically enough other standards appeared because of the need of more torque.
I feel like a + shaped screw head would be as standard as a pyramid if multiple civilizations had developed screws independently. It wouldn’t be the last kind, but it would be there somewhere. Maybe even a long, long time ago.
There are at least 3 standards for the + shape already. Phillips, Pozidrive, and Japanese Industrial Standard (JIS). They do not play well together.
insert obligatory xkcd standards reference
This bugs me so much more than it should. Why do we have three different standards for + shaped screws? You know what doesn’t have this problem? Flatheads. There’s exactly one way to make a flathead screwdriver, and I won’t be looking it up to make sure I’m right
I see that multiple people have replied, but unfortunately reading these comments would be a form of research so I must decline
Their isn’t one way to make a flat head screwdriver. Some a chisel and some are slots. The slotted ones are better but more expensive.
Both still slip from the screw and are a pain to manually screw (slotted less so).
Pozi is the best + type screw. It’s pretty much standard for UK construction. The only time a different type is used is sometimes Phillips for plaster board or external hex and internal torx for long or large screws.
Hey, if it works it works.
It works, but badly. All my homies hate cam-out and love torx.
It works great for it’s intended purpose which is torque limiting.
Correct. The original patent makes no reference to any sort of cam out / torque limiting feature.
Well, limiting torque but killing itself and becoming extremely hard to remove is terrible design lol
Why wouldn’t they? It’s an efficient design, and aside from the whole force thing they seem to be working with the same physics that we are. Why wouldn’t they invent philips head screws?
If you have ever used torx once in your life you can’t say that Philip is great anymore.
Torx is cool and all but all the touted virtues such as less cam-out go out the window if you have to drive them in at wonky angles, like tight fitting spaces. If you gotta angle the driver it’s not gonna seat well at all, apt to jump and wear out your bit. And if your only T20 rolls away and falls under a deck, yuck, 10mm problems.
Phillips has a place and that place is ‘a wonky place to hold a power drill’. That said I’m a huge fan of square head because it’s a happy medium between those two
Angled screws only work halfway well with Pozidriv
or Torx, standard Phillips 
slip too.Btw, why is Torq-set
or Tri-wing 
so uncommon? They seem the best mechanically.Edit: no way to change image size in markdown?
Efitedit: why does this exist?
Oval
