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    3 months ago

    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.

    • @Botzo@lemmy.world
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      33 months 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

      • @starman2112@sh.itjust.works
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        3 months ago

        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

        • @Botzo@lemmy.world
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          33 months ago

          Should the slot be partial or go all the way through? If partial, is that standard for the size of the screw, or universal?

          How wide should the slot be? Should that change based on the size of the screw?

          How deep should the slot be?

          Should the sides of the slot be perfectly straight, or angled to perfectly fit the wedge shape of the driver? If angled, what angle?

          Should the bottom of the slot be perfectly flat or slightly rounded so a coin or something could be used in a pinch? If rounded, what radius?

          Should the top of the screw be perfectly flat, or domed, or raised?

          Should the bottom of the head be flat, angled (at which angle), smooth, rough.

          Should we use metric or freedom units for the thread pitch?

          Should the threads go all the way to the head?

          Should the point of the screw be flat or tapered (at what angle)?

          Ok, only the first half of those were about the driver used, but I’m sure there are things I missed in that!

        • @ForgotAboutDre@lemmy.world
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          13 months ago

          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.

    • IninewCrow
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      -13 months ago

      I think a single slotted screw head would be more universal and easy. You just cut one line into the top of the screw head and your ready to go. A Philips head would need to be cut twice and once you did, you’ve weakened the head one degree more by removing more material

      • @SirSamuel@lemmy.world
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        23 months ago

        You clearly haven’t had to screw a flathead screw.

        Anyone that’s dicked around with those little bastards starts hating life after about thirty seconds. A fastener I can screw in a without having to be perfectly in line with the shaft? Yes please! I don’t care if it’s a shitty Phillips screw, sign me up. I’d even take those goofy square Canadian screws. Hell, anything is better than flathead.

        I challenge you to find a screw worse to use than a flathead screw.

      • @Drivebyhaiku@lemmy.world
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        13 months ago

        Ohhh no… As a person who regularly builds random shit for film and television, the single slotted screw is the bane of my bloody existence. Some designers fucking love em for the aesthetic but the cam outs on them are terrible. Is it technically easier to produce? Yes, is it viable to use for construction purposes comparitively - fuck no. Every time you cam out ( lose traction on the screw) you risk accidentally damaging whatever medium you are screwing into.

        Locally there is an insane institutional preference for the Robertson screw (which is basically a square) because it doesn’t cam out much, drives in well and arguably resists stripping better than a Phillips… This is believed in so much that any screw not seen by the camera is a Robby (usually size 2) while anything that is perceived by the audience is a phillips or a single slot screw. Given a choice nobody wants to handle single slots and chances are good you only find them in period specific builds or when the designer is a psychopath.