• A_norny_mousse@feddit.org
    2·
    4 months ago

    Having bought screws just the other day, I was exasperated at how I could not figure out how long the screw actually is between my thumb and finger cause they’re in a sealed box.

    But I knew exactly which material they have been plated/hardened with. 🤷

    So, I understand why you posted this.

    And the info about the (pre) drilling is just 😙👌

    • tyrant@lemmy.worldEnglish
      0·
      4 months ago

      Generally screw length is measured by how deep it will go into the material. For instance a countersunk screw would be measured from the top of the head to the end of the screw. A pan head screw would be measured from the bottom of the head to the end of the screw.

      • toynbee@lemmy.world
        3·
        4 months ago

        While I’m certainly no handyman, I usually just hold the drill bit to the screw to find one slightly smaller, then just use that.

        • chiliedogg@lemmy.world
          0·
          4 months ago

          I am fairly handy and have never had that method fail for anything except screwing into thick metal, in which case I’m tapping threads and using a bolt anyway.

    • HonkBonk@lemm.eeEnglish
      0·
      4 months ago

      Pozidrive is a type of screwhead like Phillips head. Its shape is similar to a Phillips head, but it has indentations at the inside corners of the “cross” (the black silhouette of the screwhead on the OP packaging shows this better than I can explain it). Pozidrive screwdrivers have lobes that slot into these indentations. IIRC, pozidrive is supposed to have less chance of camming out of the screw and stripping the head than Phillips.

      Pozi compatible recess means that you’ll be able to use a pozidrive screwdriver with these screws.

  • RamblingPanda@lemmynsfw.com
    0·
    4 months ago

    Huh, that’s pretty normal around here. But the German translation of “thread” is wrong. Literally unusable screw, light it on fire immediately.

    • Buffalox@lemmy.world
      0·
      4 months ago

      I am a complete amateur, but the box fits my experience.
      If you use same size drill as the plug, the whole will be too big, and the plug is not fitting tight and firm enough, so the screw will just rotate the plug in the whole.
      Especially in old cement you need to be careful not to use too big a drill.

        • Buffalox@lemmy.world
          0·
          4 months ago

          I only see length on that box???
          What the fuck use is that?
          Also the image shows th plug sticking out, and as (2)40 mm, with something else that is unclear to me as (2)35mm.
          Personally by the quality shown, the illustrations are useless to me.

          The plug is 6mm meant for 4-5 mm screws, there is no indication of drill sizes that I can se.

          There is also a measure on the right of (2) 12.5 mm which is completely unclear what is for?

          I don’t get you point.
          In the old days we got rawlplugs in plastic holders, with holes for the size of drill to be used. The hole for the drill is ALWAYS smaller than the plug (obviously for the previously mentioned reasons)

    • fakeman_pretendname@feddit.uk
      0·
      4 months ago

      They’re mixing up their metric and imperial sizes. These are from Forgefix, which are a British company. Many British people aged about 55 and over tend to still use imperial sizes for some things.

      So it’s not 6-8mm, but "the size of wall plug for 6-8 gauge screws, which are 3.5mm - 4mm screws in metric.

      Strangely, if you buy a multipack of masonry bits, they give you 3, 4, 6, 8, 10mm bits. Some brands of wall plugs tend to use 5.5mm, 6.5mm, 7mm. It is a conspiracy!

      Your options are:

      1. Use a smaller drill bit and wiggle it, just a little bit
      2. Use a larger drill bit and pack it out with a shim/matchstick/chopped off half-a-wallplug
      3. Individually buy the masonry bits which correspond to the plugs
      4. Buy a different brand of wall plug, which uses 6mm or 8mm bits