Attaching unit for attaching a wiring harness

A pre-assembled wiring harness comprises a pipe clamp (1) whose ends (2) have openings (3), in which a screw (4) is pushed, wherein the screw (4) passes through a spacer sleeve (7) and a clamping disk (8) , whereby the pipe clamp (1) is designed as a standard clamp and immovable on the harness arranged.