Attwood Boat Radio Antenna Base

Marine-quality, corrosion-resistant materials. For whip antennas up to 8′ long. 1″-14 threads (1-14UNS2A standard) accept antennas with 1″-diameter screw mount–VHF Marine, CB, and Loran-C. Ratchet mechanism with locking bar allows fold-down plus 210° fore-to-aft and 210° side-to-side adjustments. Deck-mounted models install with four 1/4″ fasteners.