yolotek mount on cat - question

[caddyjoe77]

So I wanted to start recording some fishing and running on the lake. Bought the yolotek pro, which plugs into the rear light plug. However, there are no threads that I could see. Is there something I am missing? other boats had a threaded deal and it could just be the size. For fishing it works fine, but dont really want to risk a gopro hero and the mount pole in rough water.

Ideas? going to check the factory store site - maybe i missed something. Will report back after i call yolotek.