This CAMVATE Universal C-Clamp bundle includes three add-on adapters to facilitate attaching various accessories. The clamp can be secured to desktops, crossbars, plate glass, and other objects up to 1.65" thick. It provides a built-in 3/8"-16 threaded hole and multiple 1/4"-20 threads to which you can mount articulating arms or certain accessories directly. The included adapters can be used to convert the mount type of your accessory or to convert the clamp's threaded holes, as needed. One of the adapters allows you to attach a baby stud to support compatible lights.
The included adapters are a 1/4"-20 male to 3/8"-16 male adapter, a 1/4"-20 female to 3/8"-16 female, and a 1/4"-20 male to 5/8" (16mm) baby stud socket. The three can be used individually or in different combinations to make the conversions you require.