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Your favourite screw head

Arran Cameron

What is your favourite screw head for small machine and self tapping screws? Is it Slotted, Pozidriv, Torx, JIS B 1012, or do you prefer something more exotic like Pentalobe or Tri-Wing?


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    Arran Cameron:
    Alex Barrett:

    I kicked off a discussion here on screws for domestic electrical fittings, which seem to be exclusively the dreadful slotted head. It seems the chief attribute of these is that you can align the slots....

    Pozi and similar are very good for most applications.


    Electrical fitting screws are M3.5 and are available with tamperproof Torx heads. If you look in the right places, you can buy them with 2 hole tamperproof heads. This head design is only suitable for relatively low torque applications.




    Of course "tamperproof" just means that someone has to buy a new set of tamperproof screwdriver bits if they want to tamper with it.  Failing that, rummage through your toolbox until you find something you can mash into the hole in the screwhead.


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  • 0
    Arran Cameron:
    Alex Barrett:

    I kicked off a discussion here on screws for domestic electrical fittings, which seem to be exclusively the dreadful slotted head. It seems the chief attribute of these is that you can align the slots....

    Pozi and similar are very good for most applications.


    Electrical fitting screws are M3.5 and are available with tamperproof Torx heads. If you look in the right places, you can buy them with 2 hole tamperproof heads. This head design is only suitable for relatively low torque applications.




    Of course "tamperproof" just means that someone has to buy a new set of tamperproof screwdriver bits if they want to tamper with it.  Failing that, rummage through your toolbox until you find something you can mash into the hole in the screwhead.


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