The Manfrotto 16mm Female Adapter with 3/8" Screw and 80mm Disc is most often used as a stand adapter. The 5/8" (16mm) receiver fits over a 5/8" "Baby" standard stud and is secured with the captive locking thumb screw. The 3/8" (9.5mm) mounting screw is a standard photo hardware size and will fit into a variety of products such as tripod heads. It can also be passed through the yoke on small lights and secured via the wing nut and 3.2" (80mm) disc base.
In the Box
Manfrotto 16mm Female Adapter with 3/8" Screw and 80mm Disc