
Support is no coincidence: Tips for choosing the right anchor
But which anchor is actually suitable for which DIY project? The decisive factor is the interplay between anchor, screw, building material, as well as the type and extent of the applied load.
Classic expansion anchors are used in concrete and solid masonry. In hollow blocks as well as plasterboard and chipboard, special cavity and toggle anchors are suitable, which anchor in the webs of hollow chambers or cavities. The application is also important. For thick attachments, for example, long-shank or frame anchors are an option, and there are special fastening sets for sanitary fixtures. The desired installation method also plays a role.

When the anchor thinks along: Clever solutions
Practical are fastening solutions that are suitable for different building materials and applications. The DuoPower anchor independently activates the correct operating principle depending on the fastening base: it expands in solid building materials, folds out in hollow building materials, and forms a knot in panel building materials. This makes it suitable for many typical fastening tasks around the home – from shelves to lamps.
The fischer DuoLine family includes five more intelligent anchors with innovative material combinations: The DuoTec nylon toggle anchor guarantees high loads in panel building materials with easy installation, even in tight and insulated cavities. The self-drilling DuoBlade anchor ensures clean, effective, and fast use in drywall, gypsum fiber, and lightweight cement boards. The flexible and economical hollow cavity anchor fischer DuoHM is also suitable for a variety of panel building materials.
The DuoLine member DuoSeal additionally enables secure fastening in wet areas with simultaneous reliable sealing of the drill hole. It is suitable for tiled surfaces and anchors securely in solid, hollow, and panel building materials. The long-shaft anchor DuoXpand allows safe and flexible application in solid and hollow building materials thanks to a clever combination of material and design as well as different anchoring depths adapted to the respective anchoring base – compatible with hex head and countersunk screws for metal and wood construction.
Think first, then drill: Thoughtful fastenings hold permanently
Whether an autumn project or a spontaneous furnishing task: The right plug starts with the question: What is to be fastened – and into what? Those who coordinate building material, load, and fastening can make sensible use of unused wall surfaces and create new order. This way, a free piece of wall quickly becomes new storage space, an empty corner turns into a coat rack, and the next DIY project becomes a small space miracle.