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Lug nut thread depth?

Discussion in 'The Garage' started by spearchucker, Aug 5, 2004.

  1. spearchucker

    spearchucker 1/2 ton status

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    I've seen a few posts lately that mention they have longer wheel studs for aluminum wheels. I just got finished mounting my 8 lug aluminum wheels and got to wondering what is the appropriate amount of thread needed to mount the lug nuts. I can srew the lug nuts on about 12 turns or about 5/8 of an inch. Is that adequate? /forums/images/graemlins/dunno.gif
     
  2. GMCLegacy

    GMCLegacy 1/2 ton status

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    most people buy longer studs when they convert their rear drums to discs.

    you have more around 3/4" of contact, since the studs are 9/16-16 thread.

    personally dually wheel studs would be way too long for you, and you are close to being short right now. a standard GM style lugnuts is slightly larger thatn 3/4", i alwasy thought it was a good idea to have threads extand out past the lug nut. but i dont think you will have any major problems as long as you have all 8 lugs per wheel.
     
  3. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    A standard rule of thumb is as much thread length as diameter. In other words if you have a 1/2" bolt your nut should also be 1/2" deep or thick. Just a rule of thumb.
     
  4. ntsqd

    ntsqd 1/2 ton status

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    And for anything critical try for 1-1/2 times the diameter.
     
  5. spearchucker

    spearchucker 1/2 ton status

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    [ QUOTE ]
    you have more around 3/4" of contact, since the studs are 9/16-16 thread.

    [/ QUOTE ]
    I thought they were 9/16 - 18 ... but if it is 16 tpi then all the better. /forums/images/graemlins/thumb.gif



    [ QUOTE ]
    i alwasy thought it was a good idea to have threads extand out past the lug nut.

    [/ QUOTE ]

    I don't think that's going to happen. I have the Gorilla deep end lug nuts. I think they're about 2 inches long. /forums/images/graemlins/eek.gif

    So it sounds like for now I can get away with it but the next time I do my bearings I should have studs replaced.
     
  6. GMCLegacy

    GMCLegacy 1/2 ton status

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    they may be 9/6-18, 9/16-16 sounded right at the time
     

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