RAM® Double Ball Adapter with 1/2" NPT Threaded Hole

Name: RAM® Double Ball Adapter with 1/2" NPT Threaded Hole
Brand: RAM Mounts
SKU: RAM-217-3U
Price: 26.79 USD
Availability: InStock
Rating: 4.6 (5 reviews)

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$26.79 ~~$39.99~~ In stock

Category: Components

The RAM® Double Ball Adapter with 1/2" NPT Threaded Hole is a RAM Mounts component designed to connect a 1/2" NPT threaded connection to a RAM C size 1.5" ball system. It is part of the RAM Mounts NPT post and hole component line.

Brand: RAM Mounts
Category: Components
Connection: 1/2" NPT threaded hole
Ball size: C size 1.5"
SKU: RAM-217-3U

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Customer Reviews (4.6 / 5 · 5 reviews)

Ava ★★★★★ Oct 22, 2026

Threaded perfectly into my existing NPT setup without any adapters, and the double ball gives me plenty of positioning options. Solid build that doesn't wobble under the weight of my antenna.

Christopher ★★★★★ Oct 21, 2026

Needed a sturdy way to mount a camera on a marine pole, and this double ball adapter fit the 1/2" NPT threads perfectly with no wobble. Feels solid enough to handle rough water without loosening.

Nicholas ★★★★★ Oct 20, 2026

The threads on this adapter are machined perfectly—no cross-threading or wobble at all. It locks onto my RAM ball mount with a satisfying click, making my setup feel rock-solid.