Quickly attach a monitor or other accessory to an articulating arm with the Mini Quick Release Plate System with Self-Locking Mechanism from GyroVu, available here in a pack of two. This quick release system consists of two small plates that slide into each other and lock into place. A red button on the side of the top plate releases the lock to enable you to slide the plates apart. The bottom plate has a 1/4"-20 removable screw and a 1/4"-20 thread for attaching to a matching arm or tripod, and the top plate has a 1/4"-20 screw for your gear.
By using several of these Mini Quick Release Systems, you can efficiently swap accessories onto your arm. Aside from an arm, the system can be mounted on almost any support offering a 1/4"-20 mounting screw.