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RAM® Square Post Clamp Base for Posts up to 4" Wide - C Size

RAM® Square Post Clamp Base for Posts up to 4" Wide - C Size - Main image
$32.49 $48.49 In stock

Category: Components

The RAM-247U-4 is a square post clamp base with a 1.5" rubber ball. It connects to rails or posts up to 4" maximum in width, making it part of the RAM Mounts C Size mounting system.

  • Square post clamp base for posts up to 4" wide
  • Includes a 1.5" rubber ball for C Size components
  • C Size ball system holds up to 4 lbs
  • Part number: RAM-247U-4
  • Brand: RAM Mounts
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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 (4.8 / 5 · 5 reviews)

Amelia ★★★★★

The 1.5" rubber ball locks in place firmly once you tighten it, so my tablet stays exactly where I put it even on rough roads. The clamp handles my 3.5" rail without any wobble, and installation took less than five minutes.

Isabella ★★★★★

Had to swap out my old plastic mount for this one, and the metal construction feels rock solid on my 3-inch post. The 1.5" rubber ball grips it tight with no wobble at all.

Scarlett C. ★★★★★

I’ve been using this clamp base on my boat’s 3-inch rail and the rubber ball holds my device steady even in rough water. It was easy to install with the included hardware, and the grip feels secure without marring the post.