The RAM-273U consists of a C size 1.5" rubber ball with a hex post and 1/4"-20 x 1.75" stainless steel threaded stud. This component can mount to any surface with a 1/4"-20 hole and the ball is compatible with any C size socket arms.
RAM® Ball Adapter with 2.5" Long 1/4"-20 Threaded Stud (RAM-273U)
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