RAM® Ball Adapter with 1/4"-20 Female Camera Threaded Hole

The RAM-A-336U ball base, consists of a 9/16" diameter "A" size rubber ball, connected to base with a hole with female 1/4"-20 camera thread.

A black, 1/2" long pan head 1/4"-20 mounting screw and 2 lock washers are included.

Note: The mounting screw and lock washers are not provided by RAM.  They are provided by Cumulus Soaring, Inc.

SPECS

Ball Size:
A Size (9/16")

Weight Capacity:
.5 lb

Materials: 
Marine-grade aluminum

Weight:
0.04 lb

Warning!
Most people find that the "A" sized components work fine for holding a Pocket PC in an aircraft or automobile.  However, I have received a significant number of complaints about the rubber balls detaching from the bases.  I therefore recommend the larger "B" sized arms for most soaring applications.  In fact, one customer temporarily lost control of his sailplane when his PDA cradle fell off the RAM A arm and jammed the control stick.  I have never heard of a RAM "B" size arm component failing.

Q&A
Q: Will this screw on to a mic stand?
A: It will depend on the thread pitch of the mic stand. All we can reference on this component is the 1/4"-20 female thread, so it should be compatible with any male 1/4"-20 adapter.