Extend any 15 mm camera rod using the M12 Rod Extension Screw for 15 mm rods and the built-in M12 thread.
The screw is threaded on both sides with an unthreaded and polished centre.
This addition of the centre prevents the extension screw from being completely threaded inside the rod, aiding in easy removal.
You can join two 15 mm support rods with this screw.