Drywall screw plaster/gypsum FIXX

Sunken skull. For mounting plasterboard against plasterboard with intermediate glue. Function: Sharp lace and threads adapted for anchoring in wood or plaster against plaster. The threads immediately grip and pull the screw into the plasterboard without damaging the cardboard layer. Suitable for mounting the second layer of plaster directly into the first plasterboard. Second layer plaster is glued before installation.
Installation instructions: Screwdriver with depth stop, rpm 1.000-2.000 r/m recommended.