Abstract: A screw head bush for a screw, wherein the screw head bush has an external portion and an internal portion following the external portion, wherein the external portion has a larger diameter than the internal portion and the external portion is configured essentially as a truncated cone tapering towards the internal portion and the internal portion is configured as engagement geometry for the rotationally fixed accommodation of a screw head drive.

Abstract: A wood screw, including a cylindrical screw shank, at the end of which there is formed a tip, a screw head, which is formed at the other end of the screw shank, as well as a threaded section, which extends from the tip in the direction of the screw head, wherein the threaded section has a thread core and a thread winding having several threaded turns circulating the thread core, wherein several successive threaded turns have projections, which are formed alternatingly in essentially the direction of the screw head and in essentially the direction of the tip.

Abstract: A screw having a cylindrical shank with a conical tip at one end and a screw head at the other, and at least one thread section therebetween. The thread section has a thread core. On the thread section, multiple successive thread terms are formed on a shell surface of the thread core. In the region of the thread section, multiple elevations are arranged on the outside of the shell surface of the thread core.

Abstract: A wood screw, including a cylindrical screw shank, at the end of which there is formed a tip, a screw head, which is formed at the other end of the screw shank, as well as a threaded section, which extends from the tip in the direction of the screw head, wherein the threaded section has a thread core and a thread winding having several threaded turns circulating the thread core, wherein several successive threaded turns have projections, which are formed alternatingly in essentially the direction of the screw head and in essentially the direction of the tip.

Abstract: A screw having a cylindrical shank with a conical tip at one end and a screw head at the other, and at least one thread section therebetween. The thread section has a thread core. On the thread section, multiple successive thread terms are formed on a shell surface of the thread core. In the region of the thread section, multiple elevations are arranged on the outside of the shell surface of the thread core.

Abstract: A screw having a cylindrical shank with a conical tip at one end and a screw head at the other, and at least one thread section therebetween. The thread section has a thread core. On the thread section, multiple successive thread terms are formed on a shell surface of the thread core. In the region of the thread section, multiple elevations are arranged on the outside of the shell surface of the thread core.

Abstract: The invention relates to a screw, in particular a wood screw (HS), comprising a cylindrical screw shank (1?), on one end of which there is formed a conical tip (10), a screw head (2), which is formed on the other end of the screw shank (1?), and at least one thread section (3, 3A) with a thread core (1), which thread section (3, 3A) extends along the longitudinal axis direction (11) from the conical tip (10) in the direction of the screw head (2), wherein, on the at least one thread section (3, 3A), multiple successive thread turns (30) are formed on a shell surface of the thread core (1). In the region of the at least one thread section (3, 3A), multiple elevations (4, 4?, 4A, 4B) are arranged on the outside on the shell surface of the thread core (1).