Profile rail for e.g. facade system, has screwing channel including two channel flanks, where one of flanks is partially provided with parallel groove structure for perpendicularly guiding screw during screwing operation

摘要

The rail (1) has a screwing channel (2) for engaging self-cutting screws and including two channel flanks (3a, 3b) that are laid opposite to each other. One of the flanks is partially provided with a parallel groove structure (4) for perpendicularly guiding the screw during a screwing operation. The structure transversely extends to a longitudinal direction of the rail, and is formed by coining in the screwing channel. The structure includes grooves, where a cross section of each groove has a basic form of an equilateral triangle or trapezoid.