348 engine sub frame bolt threads? | FerrariChat

348 engine sub frame bolt threads?

Discussion in '348/355' started by Ferrarium, Jun 2, 2022.

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  1. Ferrarium

    Ferrarium F1 Veteran Sponsor Rossa Subscribed

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    Anyone know what the thread pitch on those subframe bolts are. I'm going to make a batch of alignment pins for it.

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    Ferrarium, Jun 2, 2022
    #1
  2. Ricambi America

    Ricambi America F1 World Champ Sponsor Owner

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    12 x 1.25 x 35
     
    Ricambi America, Jun 2, 2022
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  3. Ferrarium

    Ferrarium F1 Veteran Sponsor Rossa Subscribed

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    Thanks to the eye it looked finer than 1.25.
     
    Ferrarium, Jun 2, 2022
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  4. Ricambi America

    Ricambi America F1 World Champ Sponsor Owner

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    I dunno. that's what I had in my notes.
     
    Ricambi America, Jun 3, 2022
    #4
  5. Ferrarium

    Ferrarium F1 Veteran Sponsor Rossa Subscribed

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    I'm sure it correct thanks!
     
    Ferrarium, Jun 3, 2022
    #5
  6. fatbillybob

    fatbillybob Two Time F1 World Champ Consultant Owner

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    I don't think that will work. But you could test it by just sourcing some studs. 12x1.25 is common.
     
    fatbillybob, Jun 3, 2022
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  7. MAD828

    MAD828 F1 Rookie

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    M12 x1.25 x35mm Metric Fine Hex Set Class 8.8

    I ordered these and they are correct. The OEM bolt has a tapered end.
     
    MAD828, Jun 3, 2022
    #7

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