Our IT Adapter was originally made for our "Inverted Tee" configuration. Since then we have used this item to configure several other antennas, including 2 and 3 element mini-beams on 2m, 6m, and 10m. Each side has standard 3/8" x 24 threads. The center hole will accommodate the standard 3/8" stud found on our soft-touch knobs (provided with the rotating arm kit).
This new version includes pins which lock into the Versatee or IT Collar (see drop down box).