Patent ID: 8616817

Claim:
A screw nail ( 1 ) for connecting plane components in dry construction by means of an automatic nailer, in particular for fixing surface elements onto a metallic substructure, the screw nail having a shaft ( 2 ) on one end region of which a head ( 3 ), and on the other end of which a hole formation region ( 5 ) extending to a point ( 4 ) or to a shape similar to a point ( 5 ) are formed, the shaft ( 2 ) being provided with a knurling ( 6 ), characterised in that the shaft ( 2 ) has a first knurling section ( 6 a ), in particular in a region of the shaft ( 2 ) adjacent to the hole formation region ( 5 ) in which the knurling ( 6 ) extends substantially parallel to a central axis of the shaft ( 2 ), and at least one second knurling section ( 6 a ) adjacent to the latter, in which an angle of elevation ( 5 ) of the knurling ( 6 ) formed between the central axis of the shaft ( 2 ) and the knurling ( 6 ) increasing constantly towards the head ( 3 ).