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 > 1" to 3/8" thread adapter?

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Ramblin' Ralph

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Posted: 01/26/23 11:49am Link  |  Quote  |  Print  |  Notify Moderator

I want to mount my cell booster antenna to a rotating mount on my ladder. The antenna has spring at the end with a male 3/8 x 24 thread. The antenna mount has a male 1" x 14 thread. I've browsed the web some for a female-to-female adapter that would solve my problem, but no luck. Maybe there is someone here with more mechanical knowledge than me that has a suggestion? [emoticon]
Thanks,
Ralph


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BarryG20

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Posted: 01/26/23 01:09pm Link  |  Quote  |  Print  |  Notify Moderator

While I have not looked what about using two fittings reduce to one size then another one to reduce again. What you have is a pretty substantial reduction/increase depending on which way you are looking at it.

Option B go to a machine shop and have them make one for you.


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Posted: 01/26/23 01:17pm Link  |  Quote  |  Print  |  Notify Moderator

DIY, drill and tap? Use a 3/8" FF adapter then MF adapter?


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Ramblin' Ralph

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Posted: 01/26/23 01:23pm Link  |  Quote  |  Print  |  Notify Moderator

BarryG20 wrote:

Option B go to a machine shop and have them make one for you.

That's what I'm going to do. I found I can buy a 1" pipe "cap" in stainless or brass. Since my old hands are too shaky to DIY, I'll take it to a local machine shop to drill/thread the 3/8 hole. Thanks to both for the input.
Ralph

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Posted: 01/26/23 05:17pm Link  |  Quote  |  Print  |  Notify Moderator

As I recall. you can jam a 3/8-24 bolt into a 1/8" brass pipe fitting. Also 3/4" pipe is around 1 1/16" OD and around 14 threads per inch. I would go to a good hardware store and get a 3/4" - 1/8" bell reducer and give it a try.

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Posted: 01/26/23 05:52pm Link  |  Quote  |  Print  |  Notify Moderator

How about https://www.mcmaster.com

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Posted: 01/27/23 08:30am Link  |  Quote  |  Print  |  Notify Moderator

Ramblin' Ralph wrote:

I want to mount my cell booster antenna to a rotating mount on my ladder. The antenna has spring at the end with a male 3/8 x 24 thread. The antenna mount has a male 1" x 14 thread. I've browsed the web some for a female-to-female adapter that would solve my problem, but no luck. Maybe there is someone here with more mechanical knowledge than me that has a suggestion? [emoticon]
Thanks,
Ralph


you will mostlikely have to go from 1" to 3/8th in two steps, a 1" to either 3/4" or a 1" to 1/2" if you can find it. then a step down from which ever size you ended up at to 3/8"

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Ramblin' Ralph

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Posted: 01/27/23 09:26am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the additional info. I'll post a pic of my solution in a couple of weeks. [emoticon]

Grit dog

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Posted: 01/27/23 09:30am Link  |  Quote  |  Print  |  Notify Moderator

I don’t think we’re talking NPT threads here. Prolly NC or NF.
You can’t get a suitable mount for the antenna?
Reason for the huge diameter on the booster?


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Posted: 01/27/23 01:22pm Link  |  Quote  |  Print  |  Notify Moderator

Have your friendly neighborhood welder weld a flat washer to one side of a 3/8 nut then weld that to one side of the 1" nut. Used a fender 3/8 fender washer if needed. Might work.


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