Stainless steel 5/16th studs, nuts and lock washers

Neoprene  rubber gasket

The top plate is  1/2 inch thick aluminum and can be painted to match the vehicle. 

Ball mount cap plate

Model # 013   $ 45.00


          Heavy Duty Antenna Mounts for Mobile Ham Radios   $10 Flat rate Shipping  with Satisfaction Guaranteed !

And when you are ready to sell that vehicle but have a bunch of holes where your antenna was,  then you need a cap.    A   4-1/2 inch plate with the same bolt pattern  to cover up the mess and help hold the resell value.