RAM® 1/4" NPT Female Threaded Hole with Ball

Name: RAM® 1/4" NPT Female Threaded Hole with Ball
Brand: RAM Mounts
SKU: RAM-B-218-1U
Price: 11.51 USD
Availability: InStock
Rating: 5.0 (5 reviews)

RAM® 1/4" NPT Female Threaded Hole with Ball - Main image

RAM® 1/4" NPT Female Threaded Hole with Ball - View 2

$11.51 ~~$17.99~~ In stock

Category: Components

The RAM-B-218-1U consists of a 1" ball and 0.25" NPT female thread. This part connects to any 0.25" NPT male thread, including RAM-PF-585-X flex arm series mounts and RAM-PA54XX rigid arm series mounts.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Natalie ★★★★★ Oct 23, 2026

Finally found a clean way to add a standard air line fitting to my RAM mount setup. The 1/4" NPT female thread threads on smoothly and the ball locks in tight with no play.

Eli ★★★★★ Oct 22, 2026

The 1-inch ball connects perfectly to my existing flex arm, making setup a breeze. Threads were clean and tight right out of the box. Exactly what I needed for a sturdy ball mount solution.

Lily ★★★★★ Oct 21, 2026

The NPT threading was exactly what I needed to attach my flex arm, and the ball joint locks tight without slipping. It feels solid and well-machined, making it a simple, reliable connection for my setup.