- cross-posted to:
- 196@lemmy.world
- cross-posted to:
- 196@lemmy.world
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Hex is amazing, actually. Perfect for mechanical systems that need precision adjustments and/or precision tightening torque. The driver grips solid and is really hard to accidentally strip.
Slotted / flat head is a joke and I can’t take you seriously if you claim it deserves a top spot in any ranking.
Phillips is great for layman end user applications that need protection from over-torque, as it’s designed to reject a driver when torqued out. But it’s the wrong head to use in like 90% of the places you encounter it.
Fyi Robertson(square) and slotted are the “tasty” screws.
Philips is a corporate design built to strip.
“Square”
Torx is the vastly superior option and Robertson drive are also really good
I’d argue that Robertson is actually superior to Torx, since the “vanes” of the Torx head are more prone to stripping than the solid right angles.
I think hex is superior to both as it’s way harder to strip than a torx and it has 50% more options for starting angle than a robertson, which comes in handy when you can only get at the bolt head from a right angle, while being almost nearly as grippy and strip-resistant. Plus it’s presumably simpler to machine than a torx star.
I think Torx tend to be used on things that are assembled by machines. It might be better to use Torx on things that are machine-assembled. In that case you have to care about the wear and tear on the screw drivers, and a Torx design might last a bit longer. With a square head there’s going to be a tendency for the driver to become rounded over time.
The only reason robertson isn’t the standard in NA is because the inventor was a moron and wouldn’t license the production to ford
Slotted screws belong in the trailerpark
If a screw is totally stripped it’s nice to use a Dremel to just cut a slot and then be able to extract the screw.
It’s missing the cursed Apple pentalobe.
I see, you decided to pick 2 pieces of shit.
Phillips proceeds to strip when I look at it badly.
Slotted keeps kicking out the screwdriver.Robertson is the top. It holds onto the screwdriver even without magnet, and good luck stripping a square.
Philips is designed to allow the screwdriver to slip out so you don’t over-torque the screw. If you’re stripping them, you’re probably using too much torque. But, it might not be your fault, because a lot of people use Philips screws when they shouldn’t, and use too much torque when screwing them in.
As for slotted, those just suck. I guess one benefit is that you can use an over-sized head on small screws. But, slotted is really the wrong choice almost every time.
Philips is designed to allow the screwdriver to slip out
That’s a myth. I’ve read the entire patent and there is no mention of it, and later patents are just post-hoc justifications for an objectively faulty, inferior design.
My charitable hypothesis is that the design uses shallower angles that are easier to cam out because sharp angles would result in stress fractures during the cold forming of the screw heads. My realistic hypothesis is that dies with shallow angles are cheaper to produce and more durable. But the point is moot: the Phillips didn’t become the de facto standard because of any practical advantage (real or perceived), but because Robertson wasn’t willing to sell exclusive rights to Ford.
I’m usually not one to criticise a person’s life choices, but if you think Phillips is better than the popular alternatives, I immediately think less of you as a person.
Phillips usually strip when using a pozidrive screw driver on them. Very common mistake because people think they are the sams, but easy to avoid once you know it.
Also, the fit has to be tight. If it’s loose, the screw driver is too small.
Posidrive is not that common and not the problem. Phillips heads strip because they’re designed to cam out and prevent snapping heads or overtorquing. JIS is same cross shape but doesnt cam out, which is good for avoiding stripping the heads but makes it easier to snap the head off of screws
Pozidrive is very common here in Germany in the form of “Spax” screws. They are the main screws we get for everything from wood working to wall mounts for pictures. They also don’t strip.
And trust me, I have seen plenty of philips screws beeing stripped ue to the use of pozi screw drivers while beeing perfectly okay when beeing removed with a philips screwdriver. Of course there are toher reasons they strip as you mentioned, but here in Germany its a hige problem because Pozidrive is so common and people dont know the difference.
Pozidriv drivers actually work very well on Philips screws, sometimes better than Philips drivers, due to the fact that the “vanes” are angled rather than curved, proving a larger contact area. Fit is definitely the larger factor, along with the quality of the screw metal.
They’re both junk next to Robertson though.
Both Phillips and slot screws are fucking awful.
Yeah flat heads are terrible. They are always the reason if I get injured by my screwdriver.
Firstly, theres no geometry preventing the bit from slipping out. Secondly, greatly exacerbating the first, you need to press hard to prevent the bit from camming out, which increases the risk of it slipping out.
Both problems combined causes the bit to slip out with very high force. If you happen to be holding the workpiece, you can injure yourself real bad.
I fucking hate flatheads.
Flat heads exist because they were the only thing we could make for a long time.
Philips was made to strip heads.
Hexagon the the true master head. No camming out and If it starts to strip, you can smack it with hammer to return it to a working shape.
IMO the only two criteria that matter are:
- Is the screw going to slip out while I’m screwing it in or out.
- Do I have a screwdriver or screwdriver tip for that screw when I need it.
Criterion 1 eliminates the flat head and Philips points. They’re terrible because they slip out. The flat head not only slips out, it slips out in the most dangerous ways.
But, criterion 2 eliminates most of the other designs. Even if you’re Canadian, which means you do have a Robertson screw driver, you might not have the right Robertson bit. Unlike with Philips or slot, the size of the bit really matters.
Ikea does a great job of handling this situation because they mostly use hex screws and bolts (which are great), but they also supply the required driver with the parts (which is necessary because many people don’t have a tool to tighten hex bolts).
6-lobe tamper is great for acute psychiatry and corrections where you’re dealing with violent and self injurious behavior. You don’t want people pulling screws out to make shivs / lockpicks / things to slit their wrists with or pulling utility plates off the wall to access wiring for fire setting or expose studs or plumbing to anchor a noose on. It’s a lot harder to improvise a tool to remove a 6-lobe than it is a flat or even a Phillips.
A narrow flat blade, like 3/16 or 5/32 will go between the lobes and center piece and allow the screw to be backed out. Done it with loads of HP SAS that insist on T10 security screws.
The real propaganda is labelling Robertson square.
The only reason Robertson isn’t everywhere is that it was patented and Robertson refused to license it, insisting that his company would be the only one to manufacture it.
Because of that, Henry Ford used those screws on the Canadian-made Model T cars, but not on the American made ones. The patent didn’t expire until 1964, so many other screw types that weren’t patented became popular in the mean time. But, the patent has now been expired for 60 years, so I think it’s ok to just call it “square” now.
I have never approached a slotted screw with any less than absolute contempt.
My 100yo house has many. I have come to think of them as quaint.
Sewing machines are about 30% slotted grub screws by weight.
This Robertson screw slander is unacceptable
I like torx
Torx is definitely the best, it holds the screwdriver the best and a torx screwdriver also works to remove other screws with stripped heads
Look at any comparison that includes robertson and it wins every time, and if the reviewer is american they’re surprised every time. Canadian fastener aisles are 95% robertson 2% torx and 3% hex because lag bolts and such. Only screws included in other hardware are anything other than those
It’s a good one but I read in the voice of “I like turtles”.
Me too
I miss Amp.
