The Shakespeare 4720 is a stainless-steel rail mount that clamps a standard-thread antenna to a boat rail, with adapters for three common rail sizes and the option to bolt it to a flat surface instead.
Who it’s for
Sailboats and powerboats with stern or bow rails
Adding a backup or AIS antenna without drilling the deck
Pontoon rails
Key features
Stainless-steel construction
Standard 1"-14 antenna thread
Adapters for 7/8", 1", and 1-1/4" rails
Mounts to straight or angled rails
Mounting tips
Check the thread. Most marine VHF, GPS, and TV antennas use a standard 1"-14 thread.
Plan the fold-down. A ratchet mount lets you lower the antenna for bridges, trailering, storage, and covers. Check clearance through the full swing before drilling.
Back it properly. An 8-foot antenna puts real leverage on its mount in wind and waves. Use backing plates or through-bolts on thin decks and hardtops, and bed fasteners with marine sealant.
Confirm your rail diameter and orientation, antenna weight, and cable routing.
What you're getting
Brand: Shakespeare Part Number: 4720 Fulfillment: Ships from a U.S. marine distribution warehouse Warranty: Manufacturer warranty terms vary by brand and product
Shipping & returns
Shipping options and charges are shown at checkout. Orders normally ship from a U.S. distribution warehouse. Manufacturer warranty eligibility and claim procedures vary by brand; review the manufacturer’s current terms before ordering. Questions can be sent to support@sonarkmarine.com.
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