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Modding Hard Disk mounting Screw Type

Discussion in 'Modding' started by kHAn_au, 20 Aug 2007.

  1. kHAn_au

    kHAn_au What's a Dremel?

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    I bet this has been asked before but I simply can not find an answer on bit-tech or google.

    What thread type are hard disk screws? I'm sure they are M3 or M4 but I want to be sure before I go buying tools (taps and die's)

    Thanks to those who answer! :)

    YAY! my 1st post! :rock:
     
    kHAn_au, 20 Aug 2007
    #1
  2. ElThomsono

    ElThomsono Multimodder

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    I just measured one and got near enough 3.5 :worried:

    Edit: Google says they're 6-32 UNC, so they're measured in inches :)
     
    ElThomsono, 20 Aug 2007
    #2
  3. IanW

    IanW Grumpy Old Git

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    Yup, hard drives use 6-32 UNC screws, optical drives use M3. Probably because optical drives were developed by Philips in metricated Europe?
     
    IanW, 20 Aug 2007
    #3
  4. kHAn_au

    kHAn_au What's a Dremel?

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    Much thanks guys!

    Bah now I need to get both a metric and an imperial UNC set of taps and dies...
     
    kHAn_au, 20 Aug 2007
    #4
  5. cpemma

    cpemma Ecky thump

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    If you're making your own screws, don't forget "0.150" (3.81mm) max. fastener penetration both sides" (Seagate). Too long a screw can foul something important inside the drive.
     
    Last edited: 21 Aug 2007
    cpemma, 21 Aug 2007
    #5

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