Fun fact: Torx screwdrivers are compatible with Torx Plus screws, but Trox Plus screwdrivers are only compatible with Torx screws that are one size larger
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Torx should be the default over Phillips for sure. Phillips is fine for shit like access panels or screw terminals. Slotted is useless for anything but the adjustment on pots and thermostats. Robertson is just a proto-torx. Everything else either exists to make someone money or is a bolt
Robertson drive tho
How do you feel about square drive? I’m no carpenter, just someone that’s done enough work around the house, but I’ve found that Torx are the best option but square is a close second (but I don’t think I’ve used them in any especially high torque situations, and they may fall short there).
Square drive (or Robertson) I consider a close second. They do tend to strip out faster, especially in “softer” fasteners like stainless steel.
So square is a close second in terms of quality, while being vastly simpler and cheaper to manufacture. Seems to me like i’d prefer square.
Also i’d be terrified of getting dirt in a torx screw, good luck cleaning it to make it usable again. Though i haven’t actually had this problem personally so it’s just a hunch
And a set of Allen keys usually saves a trip to the hardware store if you’re missing the right size Torx bit.
Hexes save trip to store when you need torx? How?
Because a hex key can fit (albeit imperfectly) into a Torx opening and loosen or tighten the fastener as needed.
It’s more likely to slip or strip, but it’s better than nothing.
Robertson is superior to all.
What about hexes?
Torx can’t hold shit. They’re single use screws.
I repair a lot of tech and I have never seen torx other than the standard, and security version. And security torx drivers are compatible with regular torx
There’s other types on cars
Use torx all the time on not only building sites, but in machinery repair too.
There’s only one type of torx and I think OP is winding us up :)
Edit - ha ha oh my fucking god. So it turns out the patent for torx expired in 1990. No change for us in Europe, we’re still mostly using the original design.
Not so much for the yanks. Textron, the original patent holder, realised it’d be faaaar more profitable to “licence” slightly improved designs and try to phase out the original
Enjoy your torx my euro friends, and have a giggle at the seppos paying for a fucking screw head lol
Greed to the point of mental illness 😂
There’s only one type of torx
There isn’t. There’s Torx, Torx Plus, and Torx Paralobe. See here for more details: https://www.semblex.com/en/pdf-files/technology-files/torx-paralobe-pdf/ . Plus there’s also the ttap and tamper-resistant variants shown in the meme.
As other people have mentioned, Torx screwdrivers are forwards compatible with Torx Plus and Torx Paralobe. But the screwdrivers for the newer standards are not backwards compatible with older screws.
Similarly, Tamper-Resistant Torx screwdrivers can be used on regular Torx screws. But Tamper-Resistant Torx Plus screwdrivers cannot be used on regular Torx Plus screws – it’s a completely different shape!
If you’re in a professional setting where you order high-quality screws and drivers in bulk directly from a manufacturer, I’d imagine that this isn’t much of an issue. But if you’re a hobbyist or just need to repair something in a domestic setting, the three different torx variants plus the other non-torx hexalobular screws (WA drive, Polydrive, T-Star Plus) can cause quite a bit of confusion. Anecdotally, I have a set of what I thought were really low-quality Torx bits. Turns out, they’re actually good-quality Torx Plus bits that by design don’t fit my Torx screws.
Put timing chains on a Ford v6 without a torx plus 55 and let us know how that went.
Torx plus is getting more common and you can use a torx bit on them still, and superior to torx IMO. I bet you’ve seen since but didn’t notice the difference. As a machine designer it’s my preference but I don’t often for cost
I assume all those are proprietary temper resistant, tool for it will be expensive so not many tool shop gonna have it.
Not really. A solid set for security Torx is available for like $20 from reputable brands. Naturally, you can get higher quality sets and sets that add other security bits, but you still won’t land in an unacceptable price range even for private use, let alone a pro shop.
We can debate this all day long but we all know torque is cheap.
But enough torque, have at thee!
Don’t discount hex, paired with a ball-end wrench, those are great for odd angles or tight spaces a straight wrench can’t get too.
they’re pretty good but semi liable to stripping due to lower surface area, as long as you use the right tool, and a quality one, you’ll be fine though.
Also hex is somewhat inter-compatible with torx, which is really cursed.
Torx are easier to strip, especially the smaller sizes. They’re pretty much single use screws.
Useful tip: with security torx screws, with the little nub in the centre, if you get a small flathead screwdriver to jam in there and wiggle a bit, that centre bit will snap off without much difficulty.
You should be able to use a regular Torx screwdriver bit after that.It’s easier to just pick up security bits at any hardware store…
Yeah, just exclusively buy security bits and stop worrying about it.
Why is screw DLC legal? Why are people ok with companies preventing people from working in their own devices?
Tamper proof is to prevent random idiots from messing with your stuff.
Tamper resistant torx is still a weird niche. Tamper resistant slotted for bathroom stalls makes sense because a person with a coin could disassemble a whole row of stalls without any effort, but if you’re carrying around a torx bit, you might as well be carrying around a security bit.
For some reason, Ford decided to use Security Torx to hold together their hybrid battery packs. Couldn’t tell you why that was better then regular Torx.
Random idiots that don’t know hardware stores exist
Once they’re determined to fuck with your stuff, they’re no longer random. It’s just to delay the occasional dingleberry with a multi tool until they get distracted and forget. “Huh, it doesn’t fit. Oh well, Tik Tok it is.”
Torx drivers are forward compatible with Torx plus screws
One of these is a settings icon
I have to admit that each time I saw a torx security screw on a case I had to open (looking at you, Compaq) this made me so angry that I used to punch the middle pin away with a flathead screwdriver, and replace the screw with a regular one later. This was in those past times I did not have a fuckton of assorted torx bits in a gigantic case…
Didn’t Compaq use to have those torx with a slit in them where you could put a flathead screwdriver in the slit part?
I know HP uses those on some computers. Pretty neat design, if you ask me!
Yes I’ve always referred to them as Compaq screws but mainly because I personally saw them on Compaq first. I think HP bought Compaq at some point and that might explain why they are used on both brands. Don’t know which brand started using them first.
I would have rather had they just used Phillips screws but as far as weird screwheads go these aren’t too bad.
the worst is not when the screwdriver is fucked but the screw is. That is some huge pain in the ass
Torx doesn’t get fucked though, compared to alan or philips
wait really? I would imagine those small corners would easily get flattened compared to something with deeper ridges like philips
Phillips strips way, way easier than Torx. Stripping generally happens when a screwdriver cams out, or pops out of the screw. Here are some excerpts from Wikipedia of Torx vs Phillips.
The hexalobular socket screw drive, often referred to by the original proprietary brand name Torx ( /ˈtɔːrks/) or by the alternative generic name star drive, uses a star-shaped recess in the fastener with six rounded points. It was designed to permit increased torque transfer from the driver to the bit compared to other drive systems. The drive was developed in 1967[44] by Camcar Textron.[45] Torx is very popular in the automotive and electronics industries because of resistance to cam out, and extended bit life, as well as reduced operator fatigue by minimizing the need to bear down on the drive tool to prevent cam out.
And Philips on the other hand:
The Phillips screwdriver design has a tendency to cam out during operation due to angled contact surfaces which create an axial force pushing the driver out of the recess as torque is applied. Despite popular belief,[2] there is no clear evidence that this was a deliberate design feature. When the original patent application was filed in 1933, the inventors described the key objectives as providing a screw head recess that (a) may be produced by a simple punching operation and which (b) is adapted for firm engagement with a driving tool with “no tendency of the driver to cam out”.
I’m not sure about Allen. It doesn’t cam out very much, but it does still strip a lot easier than Torx. Probably due to the smaller contact points.
Well said.
And with the hex/Allen, it’s the small contact points as well as the smaller volume of material that needs to be deformed or removed before slippage can occur, as well as the angle of force on the contact point.
With a hex, the contact point and direction are such that the tool is effectively trying to scrape off material at an angle, and if/when it succeeds even a little bit, it’s now much more prone to fail.
With a Torx, the contact area might still be small, but it’s being applied to the lobe in a more perpendicular direction, so rather than a scraping failure, it’s more of a force that is pushing directly against steel instead of scraping. Not that it can’t fail, but the route to failure is significantly less likely.
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Plus what?!
Not a single person sharing the xkcd comic about standards? Well I’m not doing it.
Why does Torx Plus have six teeth but tamper-resistant Torx Plus has five? Whereas ‘what the fuck is this’ basically looks like it should be tamper-resistant Torx Plus?
I guess they wanted to make it even more difficult for “regular people” to acquire screwdrivers that could undo tamper-resistant screws? With the standard Torx Tamper-Resistant screws, they could often be bypassed by chiseling the pin away with a flathead and a hammer, and then using a standard Torx driver. Can’t do that with the pentalobular design!
+1 for hex, but that’s in a lab setting — climate controlled environment, generally not high torque, pretty benign conditions. But even that is fraught with metric-vs.-imperial mix ups.
The key is to drag the US into the future along with literally everyone but Liberia and Myanmar.
