Sea-Dog 329500-1 Fixed Antenna Base, Flange Mount Nylon, Fits 1 Inch-14 Thread Antennas

The Sea-Dog 329500-1 Fixed Antenna Base is a low-profile, flange mount base built to accept any standard antenna with 1 inch-14 threads, making it well suited to GPS antennas, marine TV antennas, and other shorter antennas that do not need the added height of a ratchet or rail mount. It is constructed of UV resistant injection molded nylon in white, so it resists sun exposure and saltwater conditions without cracking or fading over time. The flange design sits low against the mounting surface for a clean, unobtrusive profile on a helm, console, or hardtop. Installation is straightforward: the base secures with three 1/4 inch RH fasteners (fasteners are not included), letting it mount to a flat surface without cutting a large hole for a through-deck base. Because the threaded socket follows the common 1 inch-14 standard, the 329500-1 works as a simple, direct swap point for antennas that use that same thread pitch, whether replacing a cracked base or adding a new antenna mount elsewhere on the boat. It is a compact, functional piece of deck hardware rather than a specialty part, so it is straightforward to install with basic hand tools and no special bonding or wiring beyond the antenna connection itself.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 329500-1
• Material: Injection molded nylon
• Color: White
• Mount Type: Fixed, flange mount
• Thread Size: 1 inch-14 threads
• Dimension A: 2-13/16 inches
• Dimension B: 1-9/16 inches
• Dimension C: 2-3/16 inches
• Fastener Size: 1/4 inch RH
• Fasteners Included: Not included (three required)
• Weight: 0.076 pounds
• UPC: 035514329088

Fitment

• Accepts any standard antenna with 1 inch-14 threads, including GPS antennas, marine TV antennas, and other shorter antennas.

Frequently Asked Questions

What antenna thread does the Sea-Dog 329500-1 accept? The 329500-1 accepts any standard antenna with 1 inch-14 threads, which covers most GPS antennas, marine TV antennas, and other shorter antennas that use that common thread pitch.

Is this a fixed mount or a ratchet mount? It is a fixed, low-profile flange mount, not a ratchet or adjustable mount, so the antenna sits in one set position once installed.

What material is the Sea-Dog 329500-1 made from? It is made of UV resistant injection molded nylon, which is built to hold up to sun exposure and saltwater without cracking or fading.

What color is this antenna base? The 329500-1 antenna base is white.

Are mounting fasteners included with the 329500-1? No, fasteners are not included. The base installs with three 1/4 inch RH fasteners that need to be purchased separately.

How much does the Sea-Dog 329500-1 weigh? This antenna base weighs 0.076 pounds.

What are the dimensions of this antenna base? The Sea-Dog 329500-1 measures 2-13/16 inches at dimension A, 1-9/16 inches at dimension B, and 2-3/16 inches at dimension C.

Is the 329500-1 a good fit for a GPS antenna? Yes, its 1 inch-14 threaded socket is ideal for GPS antennas as well as marine TV and other shorter antennas that use the same thread size.

How is the 329500-1 different from a ratchet-style antenna mount? Unlike a ratchet mount, the 329500-1 is a fixed flange base with no adjustable joint, giving it a lower profile for antennas that do not need to be angled or folded down.

What is in the box with the Sea-Dog 329500-1? The package includes the injection molded nylon antenna base itself; the three 1/4 inch RH mounting fasteners are not included and must be sourced separately.

Can the 329500-1 be used with a marine TV antenna? Yes, because it accepts 1 inch-14 threaded antennas, the 329500-1 works with marine TV antennas as well as GPS and other shorter antenna types.