#$%^&*AU2012233049B220140220.pdf#####MULTI-TAPERED IMPLANT SCREW ABSTRACT A first aspect of the invention concerns a screw (1) for bone implants. The screw comprises between two and four cones, wherein the narrowest end of the lower cone (41) corresponds to the lower end (4) of the screw and the other cones are joined to the lower cone (41) or to each other, such that there is a match between the widest end of a cone with the widest end of the adjacent cone and the narrowest end of a cone with the narrowest end of the adjacent cone. The length of each cone located in the ends of the screw is between 20% and 80% of the total length of the screw and angles a and P, which correspond to the tilt of the outer surface of the cones (31, 9, 9A, 9B, 41) with respect to longitudinal axis (L), ranges between 0.50 and 60*.