Brake nut identification

Discussion in 'The Bench' started by Blurredman, Dec 7, 2019.

  1. Blurredman

    Blurredman Well-Known Member

    Hey guys.

    I'm nearing the end of my preventitive maintenance with my Buick before the winter and I have to work on my Peugeot, but first I have to make a new brake line for the passenger side front. The caliper end brake line fitting is completely unusable and I need to replace it when I make my new line.

    The car is a 1980 LeSabre. With 7/16ths line fittings (spanner size). I made the initial mistake on thinking they were 11mm - they're very close! 11mm might be an uncommon size over there, but here in Europe it is I think the most common. Anyway- the assumption was also credit to the possibility of multiple units thanks to the period it was built in.


    Anyway, It looks like a close and fine thread. But I don't have any gauges/tools to identify what the thread pitch is.

    From some rudimentary maths and the help of my potato, I think 20tpi.
    I believe the lines on the car are 3/16ths, which I am trying to help convert into metric to see if my replacement line is the same diameter.

    I'm thinking that the below would be an appropriate replacement in regards to sizing (not necessarily price or material however)
    https://www.ebay.co.uk/itm/AUTOMEC-...038564?hash=item2f25a51464:g:f-0AAOSwF31b4xT7

    (?)

    Any ideas?
     

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    Last edited: Dec 7, 2019
  2. newmexguy

    newmexguy Well-Known Member

    An '80 GM car will be a mish-mash of SAE and metric fasteners. Car is not all metric. Believe first all-metric GM car may have been the '76 Chevette.
     
  3. gszinny

    gszinny Platinum Level Contributor

  4. BBBPat

    BBBPat Well-Known Member

    Be careful if you buy local. USA and European lines look very similar, but the Euro lines wont tighten and not leak. Just sayin'
     

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