Torque Cars

Aluminium Wheel Nuts

Discussion in 'Wheels, suspension and tyres' started by old-git, 16 March 2012.

  1. old-git

    old-git Moderator

    Messages:
    9,182
    From:
    Essex
    Car:
    Elan & Robin Hood
    Anyone here used these. If so, any issues?
     
  2. Loz

    Loz Torque King

    Messages:
    7,661
    From:
    Wolverhampton, U.K.
    Car:
    MX-5
    Not heard of them before, I assume you can only use them once?
     
    Last edited: 17 March 2012
  3. SLEEPER

    SLEEPER Pro Tuner

    Messages:
    2,782
    I have a 1973 911 which has aluminium wheel nuts and these were designed to be reused
     
  4. old-git

    old-git Moderator

    Messages:
    9,182
    From:
    Essex
    Car:
    Elan & Robin Hood
    No, they are hardened and can be used like steel nuts, although you have to be careful. Using a torque wrench rather than a windy gun or long lever is a good idea.

    They remove quite a lot of unsprung weight.
     
  5. SLEEPER

    SLEEPER Pro Tuner

    Messages:
    2,782
    The nuts on the 911 weigh close to nothing and as you say it is unsprung weight.
    Not sure if they had air guns in the seventies but it best to tighten them up with a torque wrench and in some kind of sequence like a cylinder head.

    Not very good for quick wheel changes though and you do need the right vehicle to be worth doing
     
  6. Charliep

    Charliep Torque Junkie

    Messages:
    125
    From:
    Thurrock, UK
    Car:
    Alfa GTV & 33
    You can't harden aluminium like steel.

    Depending on the alloy, they can be very good and durable.
     
  7. SLEEPER

    SLEEPER Pro Tuner

    Messages:
    2,782
    I think that the 911 thread is the same size as my nissan both metric anyway.

    will check when I am down the workshop next and report. I might even weight them for a grin
     
  8. old-git

    old-git Moderator

    Messages:
    9,182
    From:
    Essex
    Car:
    Elan & Robin Hood
    Not in the same way, agreed, but precipitation hardening, also called age hardening, is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloys of aluminium, magnesium, nickel and titanium.
     
  9. SLEEPER

    SLEEPER Pro Tuner

    Messages:
    2,782
    Out of interest I took a couple of nuts off the 911 while in the workshop. They are std ones from a 1973 911T

    They are really light . I would guess two or three weigh about the same as one wheel nuts on my 32GTR and they are light compared to some Nissan nuts.

    The 911 nuts are also quite a lot bigger although that may be neccessary I dont know.
     
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