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RAM® 4" Square Post Clamp Ratchet Base with 1/2" NPT Post

RAM® 4" Square Post Clamp Ratchet Base with 1/2" NPT Post - Main image
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$124.15 $193.99 In stock

Category: Components

The RAM-247U-4P1 is a mounting component from RAM Mounts that combines a flat clamping base, a ratchet arm, and a 1/2" NPT post. It is designed for square posts and is part of the RAM Mounts Components category.

  • Flat clamping base for square posts up to 4" wide
  • Includes a ratchet arm
  • Includes a 1/2" NPT post
  • SKU: RAM-247U-4P1
  • Listed under square post clamps and material-handling components
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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)

Scarlett L. ★★★★★

Finally, a mount that actually stays tight on a square post without any wobble. The flat clamp base grabs evenly, and the 1/2" NPT post is exactly the right size for my marine antenna. Really solid feel when you ratchet it down.

Steven ★★★★★

The ratchet mechanism clicks into place with a satisfying solidity, and the 1/2" NPT post threaded onto my existing gear without any wobble. I've got it clamped to a 4" square post on the boat, and after a weekend of chop, it hasn't budged a millimeter.

Zoe ★★★★★

I was pleasantly surprised by how sturdy the ratchet arm feels when tightening it onto the square post. The flat clamping base holds firm without any wobble, which is exactly what I needed for my setup.

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