Picking lug nuts for aluminum wheels

Tires and Wheels (Mopar Hubcaps Too)

  1. Sedanman

    Sedanman 67-9 Valiant specialist

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    I have 2 sets and 1 set is 1" thick at the lug area. Do I want 1" or 7/8? I know the wheel won't sit tight to the axle/drum if it's over. What do you recommend? I have to measure the thickness on the other set.
     
  2. 71DodgeDemon340

    71DodgeDemon340 Well-Known Member

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    Do the wheels require conical seat or sholdered nuts?
     
  3. Sedanman

    Sedanman 67-9 Valiant specialist

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    These are unilug.
     

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  4. 71DodgeDemon340

    71DodgeDemon340 Well-Known Member

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    Yeah those require sholdered nuts, id go with 7/8" if the holes are 1" deep. That way the lugs wont bottom out on the hub before the wheel is tight, also the sholdered nuts should come with about a 1/8" washer. Not sure if the 7/8" is from washer to end of nut or from top of washer to end of nut if that makes any sense

    Also are the wheels hub centric? If not id be concerned about running them
     
  5. Sedanman

    Sedanman 67-9 Valiant specialist

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    It does,thanks
     
  6. Daves69

    Daves69 Well-Known Member

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    FWI, Cragar unilug washers I have vary a bit and are .160" - .165" thick.
    A 1" shank lug may put you a little close to bottoming if I'm reading that tape correctly.
     
  7. Sedanman

    Sedanman 67-9 Valiant specialist

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    All I'm seeing is 3/4 long so far
     
  8. Sedanman

    Sedanman 67-9 Valiant specialist

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    In my thinking....If I use the 1",if they have it is if it's 1" total and an 1/8" for the washer that would put me about 7/8 and won't bottom out. It I use the 3/4 with the washer it's going to have me around 1/2"
     
  9. Sedanman

    Sedanman 67-9 Valiant specialist

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    The only ones I found above 3/4 are 1.38 in w/o washer
     
  10. krazykuda

    krazykuda Well-Known Member FABO Gold Member How-To Section Editor

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    The general rule of thumb for thread engagement is 1 1/2 times the diameter of the threads...

    Example:

    a 1/2" thread times 1.5 is 3/4". So you should try to get around 3/4" of thread depth between the lugs and the nuts, and still have the bolt seating on the face of the rim...


    How long are the studs?

    How thick is the rim around where the lug nuts go?

    Do the nuts clamp at the bottom of the nuts, or around the base of the nut where the washers go???
     
  11. Daves69

    Daves69 Well-Known Member

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  12. Sedanman

    Sedanman 67-9 Valiant specialist

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    1/2 20. I just found a 1" shank after about 10 pages on feebay before the washer is added. If the thickness of the wheel is 1" then a 1" lug with the 1/8" should be about right and won't bottom out. If I'm right?
     
  13. Sedanman

    Sedanman 67-9 Valiant specialist

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    The tip of the tape measure is loose and slides back and forth at the end so it looks 7/8" in the pic.
     
  14. 71DodgeDemon340

    71DodgeDemon340 Well-Known Member

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    I agree with kuda, id go with the 3/4" nuts.
     
  15. 71DodgeDemon340

    71DodgeDemon340 Well-Known Member

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    It's supposed to move, when measuring off an edge the clip slides out as it hangs over the edge and will move the thickness of the clip to keep measurement correct. Can you stand the wheel up and put the 1" mark on the backside and read the measurement easier? Looks 7/8" in the pic, if it is 7/8" you will need to go with the 3/4". Also as kuda mentioned 1 1/2 times the stud dia. Is all thats necessary for thread engagement. If your studs stick out at least flush with the wheel than 3/4" nuts will be plenty
     
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