Steel screws for plasterboard useful for fixing : panels or sheets in plasterboard for applications on: metal profiles or under structures for plasterboard screw length: 25 mm Screw diameter: 3.5 mm Each pack contains 50 pieces Marshs AC : FISCHER Colour: Black Code: 504665 On the back of the pack are instructions for assembling new product, slightly loose or ruined box, perfectly functioning (see photo).