Hohlraumdübel

A Hohlraumdübel, commonly translated as hollow wall anchor or cavity anchor, is a type of fastener designed for use in hollow building materials such as drywall, plasterboard, or hollow brick. Unlike solid wall anchors that expand into a solid material, Hohlraumdübel work by distributing the load across the interior surface of the hollow cavity.

There are various types of Hohlraumdübel, each with a different mechanism for engagement. Some common designs include toggle bolts, which have wings that spring open behind the wall, and self-drilling anchors that screw directly into the material. Others might feature expanding sleeves or unique gripping elements that secure themselves to the inner wall. The selection of the appropriate Hohlraumdübel depends on the weight of the object to be mounted, the type of hollow material, and the required holding strength.

These anchors are crucial for mounting relatively light to medium-weight items in walls where traditional screw-in methods would fail due to the lack of solid backing. Examples of common applications include hanging shelves, light fixtures, picture frames, and curtain rods. Proper installation is key to ensuring the anchor’s effectiveness and the safety of the mounted item. Overloading a Hohlraumdübel can lead to failure and damage to the wall. Manufacturers provide specific load-bearing capacities for each anchor type.