The Dinkum Systems FlexiMount Top 3/8"-16 for Dinkum Arms attaches to the top end of a Dinkum Adjustable Arm to outfit the arm with a 3/8"-16 screw. Dinkum arms are designed to normally accept Dinkum flags, but with the addition of this 3/8"-16 screw, you can conveniently switch between a flag and various 3/8"-16 equipment.
The FlexiMount Top is the combination of an ActionPod Top 1/4"-20 and 1/4" to 3/8" Adapter Screw.