1" to 3/8" thread adapter?

[Ramblin__Ralph]

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? 🙂
Thanks,
Ralph

[BarryG20]

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.