I need help sourcing a couple nuts (pun intended)

Discussion in 'Some Assembly Required' started by pjm204, Jan 20, 2012.

  1. pjm204

    pjm204 Long timer

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    I'm working on a fork conversion right now and need 3 stem nuts. None of them have commonly available threads. Let's see who can do the best internet search. Oh and if I knew what the stem was for, I'd already have the parts (I don't). It is for a yz450 but is aftermarket, likely Pro Taper or Ohlins.

    bottom nuts (qty 2) are M30x1.25
    Top nut is M26x1.25

    I ordered both of these nuts from a roketta parts site but the nuts that arrived had such boogered up threads, they wouldn't fit. Thus, the search continues.

    Your help is greatly appreciated.
    #1
  2. elgato gordo

    elgato gordo KTMRFS

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  3. pjm204

    pjm204 Long timer

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    #3
  4. elgato gordo

    elgato gordo KTMRFS

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    Sorry, close but no cigar.
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  5. pjm204

    pjm204 Long timer

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    Bump...still need this help.
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  6. Treadless

    Treadless seeking adventure

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    Stop by one of your local machine shops and have them spin them up for you.
    #6
  7. pjm204

    pjm204 Long timer

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    Yup, I talked to one today, he said not a problem. I'm going to send him the specs and get r done
    #7
  8. subybaja

    subybaja Long timer

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    Looks like there's a Porsche transmission that uses a M30 x 1.25.

    Bevel gear shaft nut M30 x 1.25 330

    Shaft nut on M30 x 1.25 # 997 GT2 - GT3




    ...and an Aprilia scooter that uses an M26 x 1.25 rear wheel nut.

    http://www.vsmotoparts.com/nut-m26x1-25


    http://www.vanseggeren.nl/aprilia_3.asp?T=322V_27&O=Rear wheel

    Some Roketa site, too. :D

    Any chance chasing with a tap (or thread file) would clean up the nuts you've got enough to work?

    Ask your machine shop about heat-treat on your custom ones. I'd be suspicious of a "grade 0" untreated nut.

    -edit- on reread, wouldn't chasing down ProTaper or Ohlins be easier than any of this other stuff? A few emails to their techs should get if squared pretty quickly, since you have the size and pitch...
    #8
  9. pjm204

    pjm204 Long timer

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    Thanks for doing some searching. I would have ordered the Aprilia nut but the site wasn't from the US. As for contacting Pro-Taper and Ohlins. I keep doing it and never get an answer. I'll keep trying before I get custom ones made.

    #9
  10. Burke-Motorsports

    Burke-Motorsports Adventurer

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    PM sent! If you can tell me what Ohlins product/s use the nuts you are looking for, it would be easier for me to look up the part numbers.

    Dean Burke
    Burke Motorsports
    #10
  11. pjm204

    pjm204 Long timer

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    Thanks, I replied to your PM.
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  12. pjm204

    pjm204 Long timer

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    Come on guys, we can figure this one out together, I know it!
    #12
  13. subybaja

    subybaja Long timer

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    Drop EagleMike a line...his Prevailing Torque KLR sprocket nut is 30mm. Dunno the pitch. If that dosn't work, I'd trust his custom machine work all day long.

    There are a couple Aprilia nuts on ebay, but it doesn't say the size. There are some 25x1.5 Aprilia axles, so I'd do some parts-fiche digging.
    link1 link2

    And a Porsche trans nut HERE and HERE , HERE. Says 30mm, doesn't say pitch.
    #13
  14. pjm204

    pjm204 Long timer

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    Thank you. I'm thinking the stem is either honda or KTM based on my WAG. I might just shoot my machinist buddy an email and have him make them. Getting tired of searching.
    #14
  15. ig_88e

    ig_88e Been here awhile

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    #15
  16. pjm204

    pjm204 Long timer

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    thanks
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  17. griffo1962

    griffo1962 Long timer

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    except that that measurement is AF (Across the Flat) the OP wants a 30mm DIA nutwich is going to be really big AF (at a guess 45mm or more) :evil
    #17
  18. subybaja

    subybaja Long timer

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    Oh, yeah...
    #18