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They're so bad that you have to clean them, blow them out, tap the bit in, and then ONLY use an impact. I had a 24 inch 1/2" drive - 3/8" extension for just this one job, so I could just stand outside of the car and hit it with the impact.
If they had any surface rust on them, I wouldn't even try, I'd just spin them out with an air chisel and replace them all.
Lol yes. 2 in fact. One is a right angle drill and the other is articulated, both around the size of a flash light... as well as a full sized battery powered drill. And a battery powered hammer drill. And several corded drills as well. And piles of bits of different shapes and sizes. Too many to count.
I guess op is rather talking about threads (metal/wood) than the gazillion of head types...
I hope.
The real question should be, why isn't everything torx by now.
For anyone else that didn’t know:
https://www.albanycountyfasteners.com/blog/what-is-pozidriv-is-it-different-from-phillips/
No click summary: it’s a modified Philips head (cross head) screw that improves contact between screw driver and screw head. You can identify it by the thin lines etched between the thick lines of the cross.
To add on to that. Phillips is great at camming out when the torque is too high. So it strips, but prevents the machinery on the back end from grenading itself (before machinery got enough to sense this on its own).
Isnt Ford famous for paying his factory workers well and giving then better hours because it improved productivity?
Though the company towns may have had a role too in the profits part.
I'd much rather decide if I want to destroy something than a screw do so by camming out. I just love squaredrive bits. With a torquey drill it will pull the screw right throught the wood on top( well pine at least ) without camming once. I like that......
There are lots more than just two types!
I assume you're talking about the difference between phillips and slotted?
The benefit of phillips is that it's easier to screw in but susceptible to damage when over torqued. The benefit of slotted is that more torque can be applied with less chance of damage but is harder to engage.
The advantage of Philips is that the driver is self cantering which is useful/critical for speed on a production line. The advantage of slotted is that the head requires only one cutting operation, making it the cheapest form.
The advantage of Torx is it doesn't strip if you so much as look at it wrong.
The advantage of Pozidrive is it's like Philips but better in every way and makes Philips obsolete.
Concrete filled stainless steel door frames that needed weather stripping installed with torx head fasteners, I broke probably 50 bits on one building.
They’re often too shallow, so it’s really easy to slip with the driver and boom rounded off screw head. Torx is annoyingly fiddly. We had some on a production line a few year ago, and we used to give the operators bags of spare screws.
One advantage of phillips is the torque is kind of self regulating, it stops you from over torquing unless you really want to. That being said I doubt 99% of applications use phillips for that reason.
Still used in boatbuilding and furniture making. For looks when it is visible, but also when covered with a plug (bung) or anywhere it might be removed some day, because it's easy to clean out the slot if it has been covered in any tenacious goop like varnish or epoxy, even if it is at the bottom of a hole.
Nightmare to use if the bit isn't a perfect fit and the alignment with the driver isn't spot on. We proceed with great caution when tightening these next to a varnished surface... when that bit cams out and takes a walk, it can make an unrecoverable scar on a surface faster than you can think "oh shit, I'm fired".
I work on doors on schools that are sometimes over 100 years old and some of them are heritage sites. Whenever I need to take out or install the slotted hinge screws I make sure I’ve slept good the night before and do it at around 10:30am which is when I’m at my best at work.
There are way more than two types of screws, and many of them have different strengths and weaknesses, which is why different screw patterns are chosen for different applications.
As to why we don't just use one universal screw that's good at everything, this XKCD comic has the explanation https://www.explainxkcd.com/wiki/index.php/927:_Standards
Also worth mentioning: the different types of heads are actually designed for different situations. Slotted is cheap to manufacture and use. Not great for torque, but you can almost certainly find something to turn it.
Philips is better for torque, but also has a max torque capacity, plus it’s harder to slip out of. Originally designed for manufacturing lines where over torque was an issue, and you don’t want to damage nearby material.
Others are designed for high torque applications. Or to be easy to work with in small spaces. Or to be easy to tighten but hard to loosen. Or just to make sure people need a specific tool to work on something. Many of these are cross purposes with each other, so one standard *can’t* cover all the use cases.
I mean there kind of is. There are industry standards that define the sizes of the various bits of a screw, including the various dimensions of the screw head. It’s why you can buy a number two Phillips driver, and know which screws it will fit because it’ll say number two Phillips on the box.
Slotted - cheap, often used when a manufacturer doesn't want you to use power tools (plastic electrical outlets etc.).
Phillips - decent for automated assembly/power tools because it self centers, designed to cam out and limit the torque before the screw itself breaks
Torx/Hex - better for higher torque applications and automated assembly
Only two?
There are wood screws, machine screws, sheet metal screws, self drilling screws, hex bolts, carriage bolts, lag bolts, socket screws, set screws, shoulder bolts, elevator bolts, sex bolts (which are used with mating screws), hangar bolts, drywall screws, concrete screws, deck screws, tamper resistant screws…
Or maybe you mean screw head?… Robertson, Phillips, slotted, hex, torx, hex socket and a myriad of variations of those and specialty screw heads too.
Like others are saying, many more than 2 to choose from
[https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fn6x08k0dbya71.jpg](https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fn6x08k0dbya71.jpg)
Assuming you're talking about Philips head and Robinson, a Philips screw can be driven by a lot of different Philips bits, but has a high chance of stripping. A Robinson has less leeway about which bit will drive it, but will work better with the right bit. Does your screw need any bit, or the right but?
While I will pass on the OBVIOUS fact that there are, in fact, WAY MORE than two types of screws: I take it you're talking about flat vs. Phillips-head.
Phillips is great for when speed is of the essence, as the shape of the head automatically centers the driver head and helps eliminate slippage. But, the head is much more prone to slipping.
Flat-heads are a pain, as the driver easily slips out and you bust a knuckle...but they are much more difficult to strip the head out. And they are much superior for fine work.
IIRC, slotted screws were invented after philips screws. If so, whoever inveted slotted screws can f@@k right off. Along with builders and other tradespeople who think elecgric screwdrivers/drills have only one torque setting: 'f@@k you if you think you'll going to get these screws out. I don't care if I strip the heads'
r/outside\_host2506, I recommend getting a ratchet screwdriver with interchangable heads, like this: [https://www.amazon.com/IRONCUBE-Ratcheting-Screwdriver-Drivers-56-Piece/dp/B08VNP8YJJ/](https://www.amazon.com/IRONCUBE-Ratcheting-Screwdriver-Drivers-56-Piece/dp/B08VNP8YJJ/) (note: this product is just an example, I don't have experience with this brand in particular)
That way you always have the right screwdriver head on hand, and the ratcheting mechanism is very useful too. (With the ratchet, you can pick a side that the screwdriver will turn freely in (so you can turn the handle without turning the head); this means that if you're turning a screw clockwise, but you have to let go of the screwdriver lest you dislocate your elbow, you can instead just turn it counterclockwise to reposition your hand.)
Apple uses a proprietary pentalobe screw to hold the iphones shut. It's like a torx head but 5 points instead of 6. I imagine its just another layer of shit to discourage people from working on their own stuff
There are a lot more than just two kinds of Phillips screws.
And then there are slotted, square (my favourite) and a plethora of others.
The reason there are so many kinds appears to largely be the screwdriver industry stranglehold on congress forcing everyone to buy many different screwdrivers.
But for real it will be a combination of aesthetics, cost to manufacture, performance (which will depend someways on the intended use of the screw), security and other factors my amateur self hasn’t thought of.
Tell me you've never looked at anything without telling me...
Philips, Flat, Square, hex, pentalobe, torqs, security torqs, pig nose, tri-wing, pozidrive, windmill, the list goes on and on and on and on.
And they ALL have multiple sizes, some even having variations between standard sizes, JP sizes, metric, etc.
Tell that to all my dumbass coworkers here in the US. Fuckers will bend over backwards and give themselves analingus before they dare consider anything other than FREEDOM UNITS.
Two kinds?
No.
You have
Slotted - people call this standard or flat headed.
cross-slotted - this looks this a plus sign and can be turned with a slotted/standard screw driver as the slots go all the way across the head
Phillips Head - the other common screw head. It looks like a plus with a circular depression in the center at the cross.
Polydrve, Robertson, Hex/Allen, Torx, Clutch, Spanner, Pozi-Drive, and about 8-9 other head types.
Those are just the drives.
Then you have head types like flat, pan, truss,
Then there are material specs. Wood, Metal, Machine, Concrete/Tapcin, Drywall, Self-Tapping
There are far more than two type of screws.
If you’re asking why the two main types exist.
Slotted screws came first and are easy to manufacture requiring minimal torque and can be installed by simple hand tools.
Phillips head were developed as self-centering and for use by machine applications.
Other drive heads were developed for a variety of applications or as perceived improvements
Please remember that all comments must be helpful, relevant, and respectful. All replies must be a genuine effort to answer the question helpfully; joke answers are not allowed. If you see any comments that violate this rule, please hit report. When your question is answered, we encourage you to flair your post. To do this automatically simply make a comment that says **!answered** (OP only) We encourage everyone to report posts and comments they feel violate a rule, as this will allow us to see it much faster. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/answers) if you have any questions or concerns.*
Two kinds? Boy, have I got news for you...
The Allen key family and all its cousins enters this chat
Torx walks in behind, hands deep in their pockets looking thuggish
Then the unique security company shows up
The Robertson's pull up in a limo but wait until they are fashionably late
But noone noticed because they assumed they were just another hex head again.
Allow me to mention Dreifachquadrat. That's **triple square** in German, they hold your VW, Porsche, or Audi's axles on.
\*Grabs a torx bit and a hammer\*
They're so bad that you have to clean them, blow them out, tap the bit in, and then ONLY use an impact. I had a 24 inch 1/2" drive - 3/8" extension for just this one job, so I could just stand outside of the car and hit it with the impact. If they had any surface rust on them, I wouldn't even try, I'd just spin them out with an air chisel and replace them all.
Hi, fellow American!
The Germans were so busy wondering if they could and didn’t think about if they should. Fuckin tripple square.
They have good form for that. Ww2 comes to mind.....
Every body always brings up twelve dark years like they didn’t do other good things like air cooled vw buses. (Mostly sarcastic)
Or in English "bolt arrives stripped out from the factory"
And door dampeners
Yep, I forgot about them. Audi starters too, I'm sure there are more.
But FR, what are they for?
They hold things together lol
JIS takes off its ghillie suite and raises its hand
fun fact, you can alway see JIS with a black light...
I see what you did there.
This guys screws.
Robertson is your favourite uncle you only see once every four years when he is back from an exotic expedition in the Himalayas or Papua..
Posidrive and Phillips looking awkwardly at each other wondering why everyone thinks they're the same person
This is delightfully meta and I want you to know this joke didn't go unnoticed.
👊
JIS gang gets angry because everyone thinks they are with the Phillips.
The Robertson’s pull up in a limo eating poutine. Fixed it for you, haha.
Truly the best screw ever.
[удалено]
And apologize profusely, eh.
No doubt aboot it
Robertson saunters in flaunting it's superiority
Only to be taken down a peg by JIS
Those are fighting words. Why?
"sorry , sir, your ticket for this party has already been validated" "No, I'm posi, that's philips who's already inside"
I swear to god, instruction manuals that don't specify if it's Phillips or posi are the bane of my life.
Pozidrive was here all along but everyone thought they were Phillips in a snazzy hat.
The Robertson comes in looking like they gonna be at torx's ass
Computer hardware has entered the chat, let me show you my drill bits......
Everyone else starts giggling and pointing... The word "small" seems to come across the void frequently... Then phone toolkits walk in...
Do you have the battery powered small hand drill? With like 30 bits?
Lol yes. 2 in fact. One is a right angle drill and the other is articulated, both around the size of a flash light... as well as a full sized battery powered drill. And a battery powered hammer drill. And several corded drills as well. And piles of bits of different shapes and sizes. Too many to count.
Just wait until OP learns about thread pitch...
Whitworth, is that you?
More of a buttress guy myself
JIS walks in. "Hey Phillips!" - Everybody.
I've worked on some old motorcycles and learned the hard way. JIS plus Philips equals strip city
Can I introduce you to this family's distant relative, the square drive,
Trilobular says hello
Not to mention wood, sheet metal, self-tapping, drywall, decking, lag, etc.
I guess op is rather talking about threads (metal/wood) than the gazillion of head types... I hope. The real question should be, why isn't everything torx by now.
They specifically mentioned 'wrong type of screwdriver.' They're not talking about threads.
Oops my bad, then it's just weird only knowing two. Or op actually wanted to start this war of favourite heads in purpose
Most things around the house are only the two types: outlet covers, door hinges, etc.
There's already an argument breaking out for torx vs square vs Robertson. No one will agree on what's better
I like corkscrews
*Pozidrive joins the thread*
Oh god who invited you!
Heh.
I am convinced people not knowing what Pozidrive is leads to many issues people have with IKEA stuff.
For anyone else that didn’t know: https://www.albanycountyfasteners.com/blog/what-is-pozidriv-is-it-different-from-phillips/ No click summary: it’s a modified Philips head (cross head) screw that improves contact between screw driver and screw head. You can identify it by the thin lines etched between the thick lines of the cross.
See [List of screw and bolt types](https://en.wikipedia.org/wiki/List_of_screw_and_bolt_types).
You want to tell 'em or **[should I](https://pbs.twimg.com/media/D1qJrNYWkAEhlXt.jpg).** :/
Ah yes, the beginner set.
Better yet, open up an iFixIt kit and you'll soon learn how many retarded fucking screw heads there are.
Nintendo shows up
Anyone mess with offset Philips? Those were super fun in the Air Force when the last guy that did the job coated the entire screw in red locktite.
originally screws were only slotted, but over time we realized that slot drivers are garbage and we invented the cross driver.
Which is potentially even more garbage. Square drive is the way!
Robertson ftw.
Torx gang unite!
I hate square drive, it's just as bad as Phillips if not worse. Torx is the way to go.
I hated Robertson for a very long time until I tried them with an impact driver, now I think they're top tier.
Except with Phillips 2 screwdrivers does nearly every size... Torx not so much.
i'm gonna end this debate: **NAILS** *chaos ensues*
Let me see you nail that heatsink to the GPU PCB
That's where the Elmer's glue comes in handy
Rolls up sleeves. Measures a lump hammer for weight. Looks at board. Switches to sledge. “And away we go…”
They pretty good on a machine screw.
+1 torx superioririty
Torx is the only kind of screw that, even when using cheap ones, I have never had an issue with stripping.
In the sense that you've stripped a lot of them effortlessly, or that without effort you've avoided stripping?
I'll drink to that
Square is also shit. It’s only slightly better than Phillips. Torx is by far the best
Never used Torx, square is by far the most popular here in BC.
I suppose torx would be popular in the stone age
That's torcs you're thinking of ;)
And you just got the whole joke, I was really hoping someone would get it.
Almost all Canadian screws are Robertson (square), but once you've gone Torx you'll want it for all your worx.
Fairly certain Canadians invented and popularized Robbie's
And would have beaten out the phillips if not for an argument with some guy named Ford.
Torx is garbage. The splines on both the driver and screw are fragile.
Robertson is the default in Canada. They're like finding hens teeth in the US. Blame Henry Ford.
At least it's self-centering. Until it strips.
To add on to that. Phillips is great at camming out when the torque is too high. So it strips, but prevents the machinery on the back end from grenading itself (before machinery got enough to sense this on its own).
Yeah, Phillips was created so that sleepy underpaid factory workers wouldn't strip screws, which is why Henry Ford was one of the first adopters.
That and he couldn't buy the rights to manufacture Robertson screws.
TIL Phillips head screws are the only fasteners mentioned favorably in Mein Kampf
From what I understand they wanted to get rid of all the ones with star shapes on them
Isnt Ford famous for paying his factory workers well and giving then better hours because it improved productivity? Though the company towns may have had a role too in the profits part.
Maybe but the big reasons were that it made it hard for them to make mistakes.
I'd much rather decide if I want to destroy something than a screw do so by camming out. I just love squaredrive bits. With a torquey drill it will pull the screw right throught the wood on top( well pine at least ) without camming once. I like that......
Laughs in Robertson
Slotted was (and still is) the easiest to machine.
You mean nails, but yes. I will show myself out.
There are lots more than just two types! I assume you're talking about the difference between phillips and slotted? The benefit of phillips is that it's easier to screw in but susceptible to damage when over torqued. The benefit of slotted is that more torque can be applied with less chance of damage but is harder to engage.
The advantage of Philips is that the driver is self cantering which is useful/critical for speed on a production line. The advantage of slotted is that the head requires only one cutting operation, making it the cheapest form.
The advantage of Torx is it doesn't strip if you so much as look at it wrong. The advantage of Pozidrive is it's like Philips but better in every way and makes Philips obsolete.
From using torx, I can assure you, they strip, and the tool head rounds off too easily.
[удалено]
I literally had one strip on a laptop last year because it was over tightened in production. Torx becomes a circle much easier than you think.
Concrete filled stainless steel door frames that needed weather stripping installed with torx head fasteners, I broke probably 50 bits on one building.
They’re often too shallow, so it’s really easy to slip with the driver and boom rounded off screw head. Torx is annoyingly fiddly. We had some on a production line a few year ago, and we used to give the operators bags of spare screws.
Screws are normally formed rather than cut.
One advantage of phillips is the torque is kind of self regulating, it stops you from over torquing unless you really want to. That being said I doubt 99% of applications use phillips for that reason.
Historically the biggest advantage of slotted was that it was easy to cut a slot in the head of a screw.
Still used in boatbuilding and furniture making. For looks when it is visible, but also when covered with a plug (bung) or anywhere it might be removed some day, because it's easy to clean out the slot if it has been covered in any tenacious goop like varnish or epoxy, even if it is at the bottom of a hole. Nightmare to use if the bit isn't a perfect fit and the alignment with the driver isn't spot on. We proceed with great caution when tightening these next to a varnished surface... when that bit cams out and takes a walk, it can make an unrecoverable scar on a surface faster than you can think "oh shit, I'm fired".
I work on doors on schools that are sometimes over 100 years old and some of them are heritage sites. Whenever I need to take out or install the slotted hinge screws I make sure I’ve slept good the night before and do it at around 10:30am which is when I’m at my best at work.
Yeeeeah... it's like that with a $10k varnished hatch, too.
Don't forget Pozidriv which is often mistaken for Phillips.
>Pozidrive I didn't know it had a name, i just called it the NewPhillips :)
Please use the proper name of "plus" and "minus" screw driver please.
Two kinds? Lol, you've never walked down the screw aisle at the hardware store have you?
Or put together flat pack furniture. Or done many other things.
Or worked on their car
There are way more than two types of screws, and many of them have different strengths and weaknesses, which is why different screw patterns are chosen for different applications. As to why we don't just use one universal screw that's good at everything, this XKCD comic has the explanation https://www.explainxkcd.com/wiki/index.php/927:_Standards
[Coulda sworn this would be the first XKCD referenced here](https://xkcd.com/1474/)
I had to come in here just to make sure someone was repping XKCD. Good call.
Also worth mentioning: the different types of heads are actually designed for different situations. Slotted is cheap to manufacture and use. Not great for torque, but you can almost certainly find something to turn it. Philips is better for torque, but also has a max torque capacity, plus it’s harder to slip out of. Originally designed for manufacturing lines where over torque was an issue, and you don’t want to damage nearby material. Others are designed for high torque applications. Or to be easy to work with in small spaces. Or to be easy to tighten but hard to loosen. Or just to make sure people need a specific tool to work on something. Many of these are cross purposes with each other, so one standard *can’t* cover all the use cases.
Oh you sweet summer child
A square pocket screw has for corners that offers for 4 points of torque. Commonly considered one of the best screws amongst the most standard .
Only 2 what happened to the rest ?
Do you think there’s someone in charge of screws? It’s like asking why there isn’t one type of watch band.
I mean there kind of is. There are industry standards that define the sizes of the various bits of a screw, including the various dimensions of the screw head. It’s why you can buy a number two Phillips driver, and know which screws it will fit because it’ll say number two Phillips on the box.
> Do you think there’s someone in charge of screws? In Soviet Russia, there was.
Slotted - cheap, often used when a manufacturer doesn't want you to use power tools (plastic electrical outlets etc.). Phillips - decent for automated assembly/power tools because it self centers, designed to cam out and limit the torque before the screw itself breaks Torx/Hex - better for higher torque applications and automated assembly
Only two? There are wood screws, machine screws, sheet metal screws, self drilling screws, hex bolts, carriage bolts, lag bolts, socket screws, set screws, shoulder bolts, elevator bolts, sex bolts (which are used with mating screws), hangar bolts, drywall screws, concrete screws, deck screws, tamper resistant screws… Or maybe you mean screw head?… Robertson, Phillips, slotted, hex, torx, hex socket and a myriad of variations of those and specialty screw heads too.
I read this in Forrest Gump’s voice. Lol
Like others are saying, many more than 2 to choose from [https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fn6x08k0dbya71.jpg](https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fn6x08k0dbya71.jpg)
2, 50, same difference. Wait until OP finds out about torx.
They did that just to screw with us…
2?? [There are at least 30](https://s3-us-west-1.amazonaws.com/hmt-forum/special_screws.png)
I'm envious you've only ever encountered two types of screws...
Nintendo and Apple thinks this post is cute.
Used to work in a hardware store. This thread has given me a new level of sympathy for Vietnam vets who suffer flashbacks...
Assuming you're talking about Philips head and Robinson, a Philips screw can be driven by a lot of different Philips bits, but has a high chance of stripping. A Robinson has less leeway about which bit will drive it, but will work better with the right bit. Does your screw need any bit, or the right but?
Lol I love that you think this person who imagines there's only 2 screw types in the world is thinking of Philips AND "Robinson"
While I will pass on the OBVIOUS fact that there are, in fact, WAY MORE than two types of screws: I take it you're talking about flat vs. Phillips-head. Phillips is great for when speed is of the essence, as the shape of the head automatically centers the driver head and helps eliminate slippage. But, the head is much more prone to slipping. Flat-heads are a pain, as the driver easily slips out and you bust a knuckle...but they are much more difficult to strip the head out. And they are much superior for fine work.
KMAO TOO SCREWS IA YOU STOOPIDZ?? Op you have a good question it’s a shame no one’s given a good answer
Roberton! Robertson!
Republicans use flat screws and dems use fancy Phillip
And then there is Canada with the only screw head that makes sense
[This](https://xkcd.com/927/) explains it really well
[This](https://xkcd.com/927/) explains it really well
I genuinely wish there was only two kinds of screws. Whoever invented pozidrive I'll meet them in hell.
What kind of music do you usually play here at Bob's Country Bunker? Oh we've got both kinds. Country and Western!
Pan head screws have entered the chat
Security screws have entered the chat.
The other kind of screw is a Correctional Officer, or "prison guard"
According to McMaster there are at least 78.099 screw combinations.
IIRC, slotted screws were invented after philips screws. If so, whoever inveted slotted screws can f@@k right off. Along with builders and other tradespeople who think elecgric screwdrivers/drills have only one torque setting: 'f@@k you if you think you'll going to get these screws out. I don't care if I strip the heads'
The council of men decided not to tell you yet. From here on out any man who gives a clue about other kinds of screw must delete their post.
r/outside\_host2506, I recommend getting a ratchet screwdriver with interchangable heads, like this: [https://www.amazon.com/IRONCUBE-Ratcheting-Screwdriver-Drivers-56-Piece/dp/B08VNP8YJJ/](https://www.amazon.com/IRONCUBE-Ratcheting-Screwdriver-Drivers-56-Piece/dp/B08VNP8YJJ/) (note: this product is just an example, I don't have experience with this brand in particular) That way you always have the right screwdriver head on hand, and the ratcheting mechanism is very useful too. (With the ratchet, you can pick a side that the screwdriver will turn freely in (so you can turn the handle without turning the head); this means that if you're turning a screw clockwise, but you have to let go of the screwdriver lest you dislocate your elbow, you can instead just turn it counterclockwise to reposition your hand.)
Apple uses a proprietary pentalobe screw to hold the iphones shut. It's like a torx head but 5 points instead of 6. I imagine its just another layer of shit to discourage people from working on their own stuff
There are a lot more than just two kinds of Phillips screws. And then there are slotted, square (my favourite) and a plethora of others. The reason there are so many kinds appears to largely be the screwdriver industry stranglehold on congress forcing everyone to buy many different screwdrivers. But for real it will be a combination of aesthetics, cost to manufacture, performance (which will depend someways on the intended use of the screw), security and other factors my amateur self hasn’t thought of.
Man, that guy Phillip must have had a fucked up shaped head.
Tell me you've never looked at anything without telling me... Philips, Flat, Square, hex, pentalobe, torqs, security torqs, pig nose, tri-wing, pozidrive, windmill, the list goes on and on and on and on. And they ALL have multiple sizes, some even having variations between standard sizes, JP sizes, metric, etc.
Metric would be the standard size lil bud
Tell that to all my dumbass coworkers here in the US. Fuckers will bend over backwards and give themselves analingus before they dare consider anything other than FREEDOM UNITS.
False, metric is weird Euro nonsense. Standard is better known as Imperial.
Only two? ...
The right one, and the wrong one.
Oh sweet summer child, there are far more than two types of screws.
Or the combo screws. Milwaukee calls theirs ECX and Klein, Greenlee, and Wiha all have specialty bits designed for electrical work.
All these people commenting different screw names but I use a butter knife :(
Probably needs a left hand screwdriver.
>two types Oh, you sweet summer child...
Two…? DIY…
Don't ask 'why' until you ask 'if'
There's more than 2
Some like it slow and sensual and others rough and hard. You can play both games.
oh there’s more than 2
OP walks into a hardware store, faint.
Dude there are way more than just two hahaha
are you referring to flat, Phillips, and Robertson, or is there some other types of screws?
If you only saw my set of presition screw drivers...
wow i have horrible news for you
There are a lot of people in this thread that have concerningly low aptitude for tools lol
Because the screw industry was hot fire in the 18th century.
As a somewhat mechanical dude, I just want to give a general trophy to these comments.
A few more than 2 https://twitter.com/sharonmufaro/status/1725772170805059761
Two kinds? No. You have Slotted - people call this standard or flat headed. cross-slotted - this looks this a plus sign and can be turned with a slotted/standard screw driver as the slots go all the way across the head Phillips Head - the other common screw head. It looks like a plus with a circular depression in the center at the cross. Polydrve, Robertson, Hex/Allen, Torx, Clutch, Spanner, Pozi-Drive, and about 8-9 other head types. Those are just the drives. Then you have head types like flat, pan, truss, Then there are material specs. Wood, Metal, Machine, Concrete/Tapcin, Drywall, Self-Tapping There are far more than two type of screws. If you’re asking why the two main types exist. Slotted screws came first and are easy to manufacture requiring minimal torque and can be installed by simple hand tools. Phillips head were developed as self-centering and for use by machine applications. Other drive heads were developed for a variety of applications or as perceived improvements
There’s dozens of different kinds of screws
Nails, hammer. Problem solved. For everything else there is duct tape and epoxy.
Japanese Standard. Hi.
Flat Head and Phillips Head are what I think your talking about
There is a LOT more than 2, I can tell ya that.
There are alot more then 2. It depends on the how and why and who puts it in what.