Hollow screw for releasable connecting of components is made in one piece from sheet with head and threaded shaft formed from wall round screw axis

摘要

The screw is made in one piece from sheet. The screw head (2) and the threaded shaft (1) are formed from a wall spaced out from the screw axis (S). The wall of the threaded shaft has several co-axial cutouts (5) along it forming webs (4), the long edges of which are at an angle to the screw axis. There are radially projecting thread teeth (6) on these webs.