Thread size for CB antennae

Discussion in 'Touring Models' started by horizonchaser, Jan 4, 2009.

  1. horizonchaser

    horizonchaser Senior Member Contributor

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    I purchased an HD CB antennae for my Tour Pak to replace what I think was a non stock CB antennae which fell off. My question is: Does anyone know the exact threat size of the antennae? The previous antennae thread mount had an oversize bushing on it to accept the Shorty Antennas. When I unscrewed that, I found what I thought was a 1/4 28 thread size. Turns out it is a 12/24. The replacement HD antennae has what looks like a plastic bushing in the female threads preventing me from screwing it in at all. Is that normal? Should I remove it to see if the 12/24 threads on the male mount will accept it? I don't want to remove the plastic if it is supposed to be there.
    Thanks for your input.
    Sincerely,
    Horizon Chaser
     
  2. DevilDogBagger

    DevilDogBagger Member

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    On my 08 it has set screws that you have to back out or they will vibrate loose. I put short ones on and they do not have set screws. I will go run out to the garage and get the factory ones and my tap and die set and I will have the thread size in a few mins.
     
  3. DevilDogBagger

    DevilDogBagger Member

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    Winner is....... 12/24

    just checked it with the gauge.
     
  4. horizonchaser

    horizonchaser Senior Member Contributor

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    Yeah, I found it to be a 12/24 also. I ASSUMED it was a 1/4 28 or 1/4 20 also. But it wasn't screwing in. But like I said. there seems to be, what looks like a plastic band inside the antennae thread preventing me from screwing it in. I am thinking that maybe I ought to just work the darned thing out of there and then try screwing it on the antennae base mount.
    My sincerest thanks to you!
    I have never, EVER posted anything anywhere but I was frustrated with this repalcement antennae, so I was really appreciative to recieve these replys!
    My best! HC

    Thanks Big Lew. I have the Shortys also and you're right, they don't have the set screw.
     
    Last edited by a moderator: Jan 5, 2009