TheManfrotto 200PL Quick Release Plate with 1/4″-20 Screw and 3/8″ Bushing Adapteris the replacement quick release plate for all heads that use the RC2 (3157N) system. The plate comes with a 1/4″-20 camera screw and a 3/8″ bushing adapter, and is compatible with 35mm and standard thread-mounted medium format cameras.