New Single Rod Clamp for 15mm rod on DSLR Rig, the rod clamp comes with Double 1/4" thread.
New Design Wingnut as follows:
You can install an Articulating Arm on the female 1/4" thread, and install a monitor or a LED on the articulating arm.
The rod clamp could be mounted on 15mm rod, locked with a wingnut. The built-in 1/4”-20 threaded hold could be mounted with magic arm with 1/4” screws for monitor. It features light weight and durability. The special design really shows great professionalism of the designer.