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  1. #1
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    Default Shovelhead pulley nut thread size?

    Long story short- Need to buy a nut asap and I'm at work so i cant measure it. I'd orderd one from JP monday, and it said in stock, looked up tracking today and now it says it wont ship for 11-14 days, no good. So i need to order one from Mcmaster or pick one up from the hardware store today. Anyone know the thread size? Thanks guys. Googling I can only find the socket size needed, not the actual thread size.

  2. #2
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    I'm assuming that your talking about the motor sprocket shaft...???
    Also assuming that you are running a belt drive...???

    Am I close ..??

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    yes, motor shaft, splined, with a belt drive.

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    I'm 90% sure its 7/8-14.

    IDK if it was just mine, but I had to get a handful of nuts to find one that would spin on freely. I have a colony part that wouldn't thread on - felt like it was mixing thread pitches. I then bought 4 different nuts and only one of them would spin on. Not trying to gorilla a nut onto fine threads on a sprocket shaft!

    Edit - confirmed 7/8-14
    Last edited by Blackbetty; 06-10-2016 at 8:52 AM.

  5. #5
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    Thanks Man!

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    Not all nuts are the same....

    Click image for larger version. 

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    The one above was made for belt drives...
    It has a much larger foot area over the Oem nuts meant for steel engine sprockets...



    Could get fancy if running a open belt drive with using these nuts...



    Last edited by Dragstews; 06-10-2016 at 9:43 AM.

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    Go to Harley they might have one. It's not going to be something you will find at Lowes....... A Nut and bolt house maybe.......... Good luck....... What year Shovel?????????

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    Note the turned area on Dragstews nut. That acts like a washer to keep from leaving nut marks on the pulley. You could chuck a plain nut in a lathe for a similar result.

    I'd call belt drive vendors. If it's no-shit "need it now" you can get it overnighted or other fast shipment. It's kind of an odd duck for a hardware supplier.

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    if you havn't ordered one p/m me. i'm sure I have one on my shelf you can have. I can look after work today.

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    I have one too, brand new. part number 24003-55
    let me know if this is what ya need


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    Quote Originally Posted by farmall View Post
    Note the turned area on Dragstews nut. That acts like a washer to keep from leaving nut marks on the pulley. You could chuck a plain nut in a lathe for a similar result.

    I'd call belt drive vendors. If it's no-shit "need it now" you can get it overnighted or other fast shipment. It's kind of an odd duck for a hardware supplier.
    what he said and I love nuts like that

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    ...........Nuts .... What Nuts ...???


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