RAM-B-337U - a 1/4"-20 female thread hex hole connected to a 1" rubber ball.

You can add a RAM ball mount to a bolt or any standard camera tripod using this ball.

Replace the standard tightening bolt on any B-series arm with a 40mm ΒΌ"-20 thread and a RAM-B-337U and you have an Add-A-Ball: an extra ball on the side of your existing arm.


Powder Coated Marine Grade Aluminium

Ball Size:

1" Rubber Ball "B" Size


23 grams / 0.05 lbs


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RAM Ball - B Series 1" with female 1/4"- 20 thread - / Tripod Mount

  • Brand: RAM Mounts
  • Product Code: RAM-B-337U
  • Availability: In Stock
  • $19.95

  • Ex Tax: $17.35