Kupo KS-026 Brass Hex Stud Spigot adaptor 1/4-20 Thread

This Kupo KS-026 Camera Hex Stud 1/4-20 Thread is a hexagonal adapter stud on one side to mount on a Convi or Super Viser Clamp while the other side is a round baby 16mm (5/8″) adapter with a 1/4″-20 male thread.