Device for synthesis of bone fractures, comprising a plate and screws for locking said plate. The plate is entirely made from biocompatible and radiolucent plastic material suitable to permit a radiographic control and an easy explantation of the plate and is provided with through holes for the screws fixing the plate on the bone. The screws comprise a threaded shank having an external diameter less than the diameter of said holes and a head having a thread with an external diameter greater than the diameter of said holes so as to permit insertion of the screws according to a plurality of directions and inclination with respect to the axis of the holes in the plate, said head being suitable to engage said holes by self-threading.
