Thread size for shoulder mount retractor for 79 Camaro

Discussion in 'Interior Restoration' started by Skip Fix, Feb 2, 2018.

  1. Skip Fix

    Skip Fix Veteran Member

    2,070
    5
    Mar 21, 2007
    Katy,Texas
    So my 79 Camaro I am bolting some covers over where the factory set belts bolt in the roof there are threaded holes. Roll cage so racing harness so no factory belts. Not 5/16 or 3/8. I have the factory bolt it looks like an M8 too small for an M10 but I can not match the threads. Any ideas?
     
  2. larrylarry

    larrylarry Veteran Member

    1,495
    62
    Dec 22, 2011
    San Antonio Tx
    You need one of these. IMG_20180203_143025.jpg
     
  3. Skip Fix

    Skip Fix Veteran Member

    2,070
    5
    Mar 21, 2007
    Katy,Texas
    Been to the hardware store it starts to screw in the M8-1.25 and M8-1.0 but stops. Same for the thread cleanup set I have. Slides in the 3/8 too big for the 5/16.
     
  4. Skip Fix

    Skip Fix Veteran Member

    2,070
    5
    Mar 21, 2007
    Katy,Texas
    M8-1.25 but the factory bolts have the first couple of threads thicker to act as a lock. Past that normal 1.25 threads.
     

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