The Slik Quick Release Plate 6027 (618-735) is the replacement 1/4 20? thread QR plate for the Pro 340 QF, 504QF and 504QF II. The all metal plate includes the industry standard 1/4 20? threaded screw for mounting to video and digital cameras. It also includes a registration pin for video cameras when needed. The durable cork pad creates a solid slip free connection between the plate and camera to prevent camera drift. The plate also uses a tool free mounting design so you do not need a coin or screwdriver to securely attach the plate to your camera.