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Identify a screw (bolt?) please

Discussion in 'Tools and Materials' started by StephenOak, 4 Oct 2019.

  1. StephenOak

    StephenOak

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    The chairs were bought new, c. 40 years ago in Suffolk. So probably not for the export market.

    That was long ago enough that before asking I did wonder if this might be an imperial screw, but the head is clearly 13mm and is just too big for a 1/2" (12.7mm) spanner. I suppose an Imperial bolt with a metric head is unlikely but not impossible!

    11/32" is 8.73mm and the screw is closer is closer to 10mm than that.
     
  2. Burnerman

    Burnerman

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    40 years old, and the coach screw is sure to be imperial...say 3/8".
    In those days, the spanner sizes were Whitworth which would be a coincidental fit to 13mm.
    John :)
     
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  4. JohnD

    JohnD

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    The hot money is on to it!
     
  5. Stivino

    Stivino

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    3/8” is bang in the middle between 9mm and 10mm. A 9mm spanner is too wee and a 10mm is too big for for a 3/8 hex.
    I remember when the Colts (Mitsubishi now) and Datsuns first started to appear in 70’s, nobody had any spanners that fitted them.
     
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