Functioning
Function: The rimless expansion plug can be completely set under the plaster to the load-bearing substrate. When screwing in a screw, the anti-rotation device prevents the expansion plug from rotating. The internal serration of the expansion plug ensures a secure screw guide. The expansion plug expands when the screw is screwed in and holds due to the pressure against the borehole wall.
Assembly: The Upat Ultra-Plug U is installed in the pre-installation method. Create borehole, set plug. Screw in screw - done
Tools: Drill, drilling machine, screwdriver/electric screwdriver