Sea Dog Antenna Mount, Ratchet Style. This Adjustable Antenna Base features dual swiveling mounts for full adjustability and a ratchet-style handle for side or deck mounting. Accepts any standard antenna with 1"-14 threads. Not recommended for whips over 8' in self-supporting mode. Constructed of UV resistant injection molded nylon. Installs with four 1/4" fasteners (not included).

Base to top of threads: 4-3/4"
Base length: 3-5/8"
Base width: 2-9/16"
Mounting hole lenght: 2-13/16"
Mounting hole width: 1-13/16"