Fischer 544546 Duopower Universal Dowels Kit with Screw, M8,\nProduct Details\n--Here's what it contains: the practical DUOPOWER kit case includes a total of 160 pieces in 6 compartments with different sizes: 25 x DUOPOWER 5x25, 40 x DUOPOWER 6x30, 15 x DUOPOWER 8x40, 25 x 4x30 screws, 40 x 4.5x40 screws, 15 x 5.5x5 screws. 00\n--One dowel for all building materials: as a smart 2-component dowel, the DUOPOWER automatically adapts to the needs of the building material and achieves load values through the three principles of operation: tipping (for perforated building materials), expansion (for solid materials) and knotting (for panels)\n--Performance: when inserting the dowel, the thin edge prevents slipping into the drilling hole; the opening for easy insertion ensures easy positioning and a secure screw guide, an anti-rotation protection prevents the dowel from turning and thanks to the excellent feedback you can immediately feel when in place\n--Areas of application: the powerful d.