The balls  are  pinned to the plate to prevent rotation

Solid brass ball  with stainless steel swivel bolt
3/8-24 top thread
3 inch OD aluminum plates 3/8 inch thick
SO-239 cable connector
Delrin insulators                                                                                                                                                           neoprene rubber gasket
3 stainless steel bolts and flat washers

   Easy to install, just drill the 5/8 inch center hole where you want it and install everything using just the center bolt or cable connector.  Once it looks straight, lock down on the center bolt so nothing moves and then the front plate is the pattern to mark  for the  1/4 inch bolt holes.

Extra nuts and centers are available on the Accessories page.                                   For using more than one antenna on the mount

Quick disconnect ball on 3 inch plates with SO-239 connection

Modlel  #  113   $120.00

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CB ball mount on 3 inch plates with SO-239 connection                                                                                     1 inch face on the ball and 3/8-24 top thread for the antenna.

Model  # 117   $ 109.95

Flat top ball mount on 3 inch plates with SO-239 cable connection.

1-1/2 inch face on the ball to support your spring or screwdriver style antenna, 3/8-24 top thread

    Model # 115  $ 109.95