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  • 3 Post By jerry clayton
  • 2 Post By rspears
  • 2 Post By jerry clayton

Thread: Where can I obtain 7/16 x 20 screw in wheel studs? Not press fit.
          
   
   

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  1. #1
    testdepth is offline CHR Member Visit my Photo Gallery
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    Where can I obtain 7/16 x 20 screw in wheel studs? Not press fit.

     



    Are these unobtanium?

    I have a pair of Strange engineering axles with two stud patterns. 5 x 4.75 in 1/2 x 20 and 5 x 4.5 in 7/16 x 20. These have holes designed to screw studs into not press fit.
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  2. #2
    testdepth is offline CHR Member Visit my Photo Gallery
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    I called Dorman and ARP but struck out.

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    Why not "Strange" ?

  4. #4
    testdepth is offline CHR Member Visit my Photo Gallery
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    Quote Originally Posted by Scooting View Post
    Why not "Strange" ?
    I called Strange they only have 1/2" and 5/8". These axles are from 1992 and Strange doesn't have them.

  5. #5
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    Why not buy ARP 7/16x20 long press in studs, and cut off the knurled base? Or drill out your holes for the knurl, 0.005" smaller than the knurl for steel.
    https://www.summitracing.com/parts/a...QaArc8EALw_wcB
    Last edited by rspears; 04-04-2019 at 04:05 PM.
    Roger
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  6. #6
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    Use allen bolts screwed in from back side
    By popular opinions-just a grumpy old man key board bully--But really, if you are going to ask for help on an internet site, at least answer questions about what you are asking about-----

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    Quote Originally Posted by jerry clayton View Post
    Use allen bolts screwed in from back side
    +1 This is how I've always seen screw in wheel studs done.

    Fully threaded bolt availability is a little limited, though. McMaster Carr lists an allen head fully threaded bolt that is 1 3/4" long. I haven't found anything longer than that. If you need something longer, you may need to think about drilling the axle for a press in stud as already suggested.
    Mike

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  8. #8
    rspears's Avatar
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    You want to be careful using regular bolts, especially on a street application for long term. Those ARP wheel studs have a tensile strength of 190,000psi while a Grade 8 bolt is closer to 150,000 and the Grade 7 all thread you'll find is 125,000. What did Dirty Harry say? Do you feel lucky?
    Roger
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  9. #9
    testdepth is offline CHR Member Visit my Photo Gallery
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    Quote Originally Posted by jerry clayton View Post
    Use allen bolts screwed in from back side
    Allen bolts from who?

  10. #10
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    Try your local Caterpillar dealer. Grade 8 hardware is the norm there.
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    Try a local google search for "Fastenal". Or "Bowman/Barnes" or even just "fasteners"....

  12. #12
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    You have another easy alternative. Drill out those smaller holes and tap them 1/2x20, or have your local machine shop do them if you don't feel good about it. Summit has a wide variety of screw in wheel studs, made for the service, in 1/2x20 thread.
    Roger
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  13. #13
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    McMaster -Carr
    #91251a003
    7/16 x 1 1/2 package of 10 for $5.61 minimun tensile 180,000 psi

    cataloque #110 a few years old
    Dave Severson and NTFDAY like this.
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  14. #14
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    if you can locate threaded rod that is grade 8 too then cut what you need
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