GOST 24379.1-2012 foundation bolts. design and dimensions

main parameters

It is quite logical to assume that the dimensions of the anchors are, first of all, their length and diameter. They define the scope of the fastener. The choice of the drill that will be needed for the job depends on this. Anchor bolts are a rather complicated type fasteners, which affects their cost, this is another argument in favor of their careful selection

In addition, it is important to take into account that it is almost impossible to dismantle such fasteners of any size without destroying the base.

And, of course, it is important to pay attention to the diameter of the threaded rod, which affects the quality of the fastener. During the operation of the anchor fasteners, a standard set of components for its production was developed, which meets the basic requirements for hardware that perform fastening functions

Diameter

The anchor diameter refers to the diameter of the spacer sleeve, which determines the diameter of the required drill. The fracture strength of the connection depends on this indicator - a very important indicator when installing any objects, for example, on a wall.

Length

However, even a very solid in thickness, but a short anchor can be pulled out along with a part of the enclosing material with increasing loads if its length is not sufficient. As a rule, thicker fasteners have a longer length.

In addition, a longer anchor is able to hold a thicker object, which is very important to consider when installing supporting structures, finishing materials or equipment.

What are the sizes?

The dimensions of the anchor bolts are subject to standardization according to their production specifications. All anchor fastening hardware can be combined into size groups based on diameter, for example, an anchor for 8 has a sleeve diameter of 8 mm, and for 10, respectively, 10 mm. It is not difficult to determine the diameter of the anchor at 12.

Length maybe from 18 to 100, 200 and more millimeters. The anchor with the formula 10x300 mm is a fastener with a sleeve diameter of 10 mm and a working surface length of 300 mm. The thread of the spacer pin is standardized with the sizes of ordinary bolts: M6, M8, M10, M12, M16, M20, etc. The sizes of a stud, like a simple bolt, can also be different: M8x100, M10x100, M16x200, etc.

Standard sizes of anchor bolts are illustrated in the table.

When choosing anchors, you should correlate their length and diameter, since you will have to add the thickness of the attached material or object. The maximum material thickness that can be anchored is shown in the table. Increasing the thickness more than the recommended one can lead to the loss of fasteners or, more often, to the destruction of the enclosing material.

The trading network may receive hardware with slightly different dimensional characteristics. It is very rare, but you can still find fasteners with non-standard dimensions: 6x25.6x30, 6x40, 6x60 mm. Even less common is anchoring with a small thread diameter: for example, M3. Such hardware has a very tough competition with plastic dowels and self-tapping screws, which are usually cheaper. More often, such small anchors have a very difficult folding spacer mechanism, respectively, their own special niche of application.