Yet another Interesting use of a PoleSpear adapter.
Honda Goldwing 2018 and up ham radio adapter.
HAM Antenna for a white Jeep
Note the Nice drawing for me to Build from.
3/8"-24 FEMALE x 8mm-1.25 MALE
Part # B2375-4
This one was for a Motorcycle Antenna B3750-1A
Some Simple Data on Materials for easy reference.