TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Lug nut socket size

Discussion in 'Model S: Driving Dynamics' started by Merrill, Mar 25, 2015.

  1. Merrill

    Merrill Active Member

    Joined:
    Jan 23, 2013
    Messages:
    2,096
    Location:
    Sonoma, California
    I looked on this thread and just want to make sure that the lug nuts on the Model S are 21mm.
     
  2. SabrToothSqrl

    SabrToothSqrl Active Member

    Joined:
    Dec 5, 2014
    Messages:
    1,522
    Location:
    PA
    yes, they are. I got a 12 point deep socket 1/2" drive craftsman for this very purpose. $12 or so.

    I know because I owned a 12 point deep socket 3/8" drive and destroyed a harbor fright 1/2" to 3/8" adapter with it... (I was in a hurry).

    I also know because I had to buy a 22mm deep socket for my Tahoe wheels, and it didn't fit the Tesla as tight.

    I didn't choose 12 point, but that's all they had in deep sockets for some reason. But it worked fine.
     
  3. mspohr

    mspohr Active Member

    Joined:
    Jul 27, 2014
    Messages:
    1,797
    Location:
    California
    I think a 6 point is better for the high torque on the lug nuts. Sears doesn't have a 6 point deep socket so I bought the standard 6 point socket and it works just fine... no need for the deep socket.
     
  4. HankLloydRight

    HankLloydRight Fluxing

    Joined:
    Jan 18, 2014
    Messages:
    5,774
    Location:
    Connecticut
    Each of my lug nuts have two parallel raised ridges on each face. Anyone else see this?

    The 12-point 21mm socket would not fit properly due to the ridges, while the 6-point socket fits perfectly.
     
  5. SabrToothSqrl

    SabrToothSqrl Active Member

    Joined:
    Dec 5, 2014
    Messages:
    1,522
    Location:
    PA
    agreed. the 6 point would most likely be able to provide more torque. the lugs were not very tight when i removed them.

    If they sold a 6 point, I would have bought that.

    of course if we could just standardize on 6vs 12, that would be super as well!
     
  6. WeazL

    WeazL Moderator - Hawaii

    Joined:
    Aug 18, 2013
    Messages:
    600
    Location:
    Oahu, Hawaii
    Indeed, this has been discussed previously (albeit buried by now) and the 6-point socket seemed to win the consensus (21mm).
     
  7. Merrill

    Merrill Active Member

    Joined:
    Jan 23, 2013
    Messages:
    2,096
    Location:
    Sonoma, California
    Thanks for your input, so 6 point 21mm and do not need a deep socket.
     
  8. JakeP

    JakeP S P4996 / X P6028

    Joined:
    Apr 27, 2012
    Messages:
    1,816
    Location:
    Wexford, PA
    I got a 6-point 21mm deep Impact socket, works great:

    Sears.com
     
  9. Amped-Up

    Amped-Up Member

    Joined:
    Jan 11, 2014
    Messages:
    80
    Location:
    Morris County, NJ
    If you don't have one, I would suggest getting a torque wrench for these lugs - 125 ft lbs is a lot of force to muscle accurately. I got a 50 - 250 ft lb on line for like $60. Bigger is better - makes it easier.
     
  10. N4HHE

    N4HHE Member

    Joined:
    Oct 15, 2013
    Messages:
    620
    Location:
    Madison, AL
    13/16" is also a good fit.
     
  11. mspohr

    mspohr Active Member

    Joined:
    Jul 27, 2014
    Messages:
    1,797
    Location:
    California
    Don't need deep socket

    I just measured the lug nut height (17mm) and the Sears 21mm 6 point standard socket depth (18mm) to confirm that you don't need a deep socket. The standard socket depth will work fine.
     
  12. 4SUPER9

    4SUPER9 Active Member

    Joined:
    Jun 6, 2013
    Messages:
    1,326
    Location:
    California
    #12 4SUPER9, Mar 26, 2015
    Last edited: Mar 27, 2015
    I got this one from Amazon, mostly because it is thin-walled and protective of the wheels. I just tested it for fit, but did not actually use it. Well, not yet at least, and hopefully never.
    61pwED08XLL._SL1429_.jpg
     
  13. JakeP

    JakeP S P4996 / X P6028

    Joined:
    Apr 27, 2012
    Messages:
    1,816
    Location:
    Wexford, PA
    Oh I like that one, saves you from having to wrap it in duct tape to protect the rim!
     
  14. roblab

    roblab Active Member

    Joined:
    Jul 15, 2008
    Messages:
    2,025
    Location:
    Angwin (Napa Valley) CA
    Just for sideways interest, after several wheel rotations (65,000 miles) I noticed that the OEM lug nuts were two layers: steel on the inside, and some softer metal (aluminum?) on the outside, which began to move and loosen. I bought Gorilla nuts. I suppose one could buy any number of brands, but the idea is, you will probably have to replace the lug nuts somewhere along the way, and at that time you can go to the more common 22 mm size nuts. The solid lug nuts don't start slipping, can torque easily, can be worked with a 12 point socket (I still prefer a 6 point) and are nice and shiny. There is a thread here:

    Tesla lugnuts - Page 2
     
  15. N4HHE

    N4HHE Member

    Joined:
    Oct 15, 2013
    Messages:
    620
    Location:
    Madison, AL
    A deep well socket helps clear the rim, tire, and fender. Its not needed on the lug nut itself.
     
  16. mspohr

    mspohr Active Member

    Joined:
    Jul 27, 2014
    Messages:
    1,797
    Location:
    California
    I use a 3 inch extension on the standard socket which keeps everything away from the wheels
     
  17. Muzzman1

    Muzzman1 Member

    Joined:
    Feb 8, 2014
    Messages:
    517
    Location:
    Los Angeles
    @mspohr
    Although I'm sure it's not critical, but FYI extensions give you inaccurate torque wrench readings.
     
  18. beeeerock

    beeeerock Active Member

    Joined:
    Mar 12, 2015
    Messages:
    1,372
    Location:
    Kamloops BC Canada
    Not unless the extension is so long that you're able to shift the extension off of perpendicular and thus marginally increase the length of the lever arm. Given we're talking about lug nuts and a short extension that wouldn't add much effective length if used off of square, the differences would likely be less than the tolerance of the torque wrench. I do agree, however, that it's not critical! :smile:
     
  19. Muzzman1

    Muzzman1 Member

    Joined:
    Feb 8, 2014
    Messages:
    517
    Location:
    Los Angeles
    I think the inaccuracy comes from twisting the extension rather than changing the pivot angle.
    I know in the case of torquing high performance cylinder heads, or any precision torqued hardware, grease and no-extension are the rule.

    - - - Updated - - -


    This socket I purchased today will not fit my lugs. I'm at 21k miles so my lugs have been cycled a few times now. So I will be sticking to my 12pt with no impact gun.
     
  20. N4HHE

    N4HHE Member

    Joined:
    Oct 15, 2013
    Messages:
    620
    Location:
    Madison, AL
    Doesn't matter how much the extension twists the torque is the same. Is no different than how much the springs in your suspension are compressed, the spring compression does not lessen or increase the load carried by the wheels.

    Harbor Freight sells a neat 3" extension with digital load cell to make a torque wrench out of any ratchet or pry bar you like. About $30. As with most Harbor Freight Chinese electronics the user interface sucks and it eats batteries, but its still pretty neat thing to have.
     

Share This Page