1/4 inch Thread Captive Quick Release D Ring Screw Ideal for Manfrotto / Arca Swiss / Gitzo etc This quality robust captive screw allows the fitment of different styles of plates to fit directly into the base of your camera equipment via the 1/4″ screw Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc 1/4″ -20 metal male thread with Flathead Slot & hinged “D” Ring |