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hi everyone, im chasing a thread adaptor the reason i want 1 or a few of these antenna adaptors as the usa antenna thread is 3/8 thread and in australia we are 5/16 thread on our bases .,the usa antenna will screw onto our thread no problems but without thye adaptors or adaptor we cannot use the 27cb usa antenna without changing our base and lead set up to a usa one .thanks david nsw australia .

All you need is a helicoil to fit from 5/16 to 3/8, you should have them there. They come with a tap and a steel insert in sets. Hope this helps.

Cheers, Jim

its 3/8 to 5/16 jim only australia and nz are on that thread but we got some monkey and predator antennas in and terminators there a top antenna,regards david nsw

MobileOne Aerials in Sydney have more than likely got what you're after.