2 inch aluminum top plate
6061 aluminum 3/8th inch thick
brass center pin
1/8 inch thick rubber gasket
2 inch aluminum nut with ground screw
Stainless steel screws for Ring terminal connection
Requires a 5/8 inch hole to install on sheet metal but
can be used on a hole as big as 1-1/4 inches.
Requires only 1 inch of room under the headliner
NMO roof mount
Model # 503 $ 35.99
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