-For fixing in plasterboard, plasterboard, hollow ceilings and chipboards -These plugs are provided with mounted screws, the screw can be loosened several times without loss of grip -For walls with a thickness of 3 - 21 mm 15x M5 x 52mm; 20x M5 x 37mm; 28x M4 x 38mm; 32x M4 x 32mm