Helps fix cameras firmly and stably on the quick release plate Allows the fitment of different styles of plates to fit directly into the base of your camera equipment via the 1/4 screw Standard 1/4'' thread screw, with flat head screwdriver slot and hinged D Ring The screw is made of good quality stainless steel, sturdy, high strength, anti‑rust and durable With a D‑ring for simply screwing it into quick release plate without any tool