Using the Cold Shoe Threaded Adapter and Universal Swivel Mount

Slide the square bottom into a hot shoe or cold shoe on your Bracket 1 bracket system or on your camera and tighten the round nut to snug it into place.

Screw the accessory that you're mounting onto the threaded end until the accessory is tight against the backing plate (Swivel Mount - picture 2 & 3) or it is secured sufficiently so you can tighten the top, round nut against it, securing it from rotating (Threaded Adapter - picture 1).

If you're using the Swivel Mount, adjust the angle of the threaded section so it's comfortable to use your accessory.