Fasteners are an integral part of all construction, repair or decoration works. For fastening and fixing soft materials - linoleum, drywall, wood, you can use self-tapping screws or ordinary nails. But if you need to fasten or fix harder materials, such as brick, concrete or stone, then such fasteners will not work here.
It will certainly require some kind of stable support, which can provide the necessary degree of fixation and the desired level of stiffness, as well as high resistance to various loads. In such cases, it is advisable to use fasteners such as driven anchors.
The driven anchor is a cylindrical expansion sleeve with a thread cut inside and an external expansion zone consisting of four segments. After installation in the pre-drilled hole, the driven anchor is unclenched, thanks to the screwing in of the fastening part, which ensures the reliability of fixation.
The use of such a fastener as a driven anchor is relevant for the vertical installation of heavy structures and massive interior elements, as well as for the installation of window frames, suspended ceilings and door frames . As a rule, the outer side of the spacer sleeve has notches, which increases the reliability of adhesion to the surface of the hole. But it can be smooth. To fix heavy objects, it is advisable to use the first option.
Hammer anchor made of high-strength steel, intended for the perception of significant mechanical loads. It is appropriate to use it for fixing heavy gate consoles, brackets and other massive metal structures. In everyday life (for example, when repairing or arranging an interior) it is more logical to use a driven anchor made of brass. Since brass, being a fairly soft alloy, is more prone to deformation than steel. Due to this, a driven anchor from such a material will not create microcracks near the thrust zone.
Hammer anchor, although it is the simplest and most popular fastener, but there are other modifications of this kind of fasteners. Each of them has its own characteristics and purpose. Therefore, one or another type of anchor should be selected in accordance with the specifics of the work being carried out. Their only common feature is the presence of a sleeve that serves as a kind of anchor, which led to the name of this group of fasteners ("anchor" in translation from German means "anchor").
In addition to the driven anchor, there are also such types of fasteners as wedge and frame. The first type of anchor technique is often used where it is required to carry out the installation of heavy structures on a base having a high material density. For example, in industrial enterprises or in storage facilities. The frame anchor is indispensable when it is necessary to fasten wooden structures to a brick or stone surface.
And such a modification as a chemical (adhesive) anchor can be used even in hollow structures. In general, there are no restrictions on the use of these multifunctional fasteners. The main thing is to choose the appropriate type of anchor for certain works.