If you do need a generic 1/4"-20 camera mount and are just needing to connect to a GoPro™ with the 3-fin connection, check out the new GoPro® Camera Mount Pack (here)
(CF) Carbon Fiber Series Camera mount that allows you to connect to any device that has a standard 1/4" - 20 threaded insert. This will include cameras, video recorders, GoPro action accessories, mounts for iPhones and iPads/tablets cameras and similar products.
When used as a way to connect a device holder, this can be used with any fixed of jointed carbon fiber arm.
The camera mount is a perfect way to connect a favorite device. There are hundreds available that can hold the device. Simply attach this mount and screw in what you like.
Arms sold separately. Shown in images for example only.