Flexible screw holder allows the use of screws and hooks with different thread forms. Glass fibre reinforced plastics and the metal skeleton insert (fischer Duotec 12) ensure the absorption of high tensile and shear loads in all panel building materials. Soft, grey nylon support side distributes the load on the panel surface and thus minimises the weakening of the load-bearing building material. Standard drill hole diameters and short tilting element for easy installation in narrow, even insulated cavities. White collar sleeve with snap-in function enables quick and secure pre-assembly of the plug in the drill hole. With scale on the pull strap (fischer Duotec 12) to determine the required screw length (scale value + 20 mm).