6 types of dowels for aerated concrete

How to use?

The principle of installation of dowels is the same as for other types of fasteners. You need to act in the following order:

• first you need to prepare holes for the dowel, which should be smaller than the diameter of the attachment; for example, for fasteners of 8 mm, you will need to use a 7 mm drill;
• if you take a tool such as a punch, then you need to turn off the impact mode in it, of course, it is advisable to use a drill in this case, since it is more effective;
• plastic fasteners must be carefully screwed in using a screwdriver; if metal parts are used, then they should be driven into the bore hole with a hammer;
• when doing work, it is imperative to make sure that the products do not touch or are crooked;
• when the cuff is installed all the way, you can proceed to screwing a self-tapping screw or a universal-type bolt;
• it is necessary to screw in the self-tapping screw with a screwdriver, adhering to the required depth.

Which is better?

As you can see, there are plenty of different dowels designed to work with aerated concrete. To determine which one is the best, it is worth considering in more detail which fasteners should be chosen for different cases, namely:

• when it comes to installing lamps or hanging mirrors, then the best options would be nylon mounts, the diameter of which does not exceed 12 mm;
• when installing the pipeline, you should choose metal dowels;
• for the installation of heavy pieces of furniture, it is recommended to buy specialized metal fasteners;
• when it comes to facade work, then one option is acceptable here - special facade fasteners made of plastic;
• when fixing window and door frames, frame types of dowels should be used;
• a compact photo or picture will hold a regular nail without any problems, which is permissible to fix without a dowel.

Types of fasteners and the use of dowels

The nylon look is a design that resembles a miniature, made of plastic, meat grinder screw, or as it is also called, the Archimedes screw (named after the ancient Greek inventor). An axis is a lengthwise section of a hollow tube. For different mounting options, it is better to use a different helix pitch and blade width. Sometimes you can find a tapered look, made in the same style. It is installed in this way:

1. a hole is drilled to the required depth in the block along the outer diameter of the axial tube;
2. using a flat or Phillips screwdriver, the dowel is screwed into the body of aerated concrete with effort;
3. for fastening inside the dowel, a self-tapping screw of the corresponding diameter and length is screwed with an interference fit.

Another plastic nylon type of dowel, it is also called frame dowel, despite the fact that it is very similar to the usual one, differs from it by the presence on the lateral sides in the lower expanding part of special sharp spikes, cutting into the block, "mustaches" and other parts, design which, when screwing in the screw, restricts the plastic dowel to rotate around its own axis, breaking the hole-socket for installation.

Metal dowel nails are available with or without a head. The principle of operation is similar to the operation of a collet pencil, in which the expanding collet-grips hold the lead well and securely as soon as it gets out of the hollow tube located above into the gripping zone. It is necessary to insert it into a pre-drilled hole in the gas block. Then, with a sharp and precise blow of the hammer, drown its protruding element to the required depth.The opened metal collets from the recessed side will cut into the concrete, securely grip and fix the inner movable part (in fact, the nail), providing strong fasteners.

HPD anchor HILTI after installation in the hole, it is fixed with a special device, the impact on which pushes through the slots in the lower part of the anchor a kind of metal "mustache", cutting into the block, preventing rotation and pulling of the fastener, which is a hollow tube. It is good and convenient to attach a structure that requires suspension through a threaded stud and a mounting nut. Most often, the HILTI HPD anchor is used to fix wooden or metal frames to aerated concrete facades under cladding with various sheet, panel or tile materials.

The cost of the most common dowels

Fasteners differ in cost, determined based on the purpose, principle of operation, overall dimensions, material from which they are made. The price depends on the size (length), diameter, the number of pieces in the package (it can be from 25 to 400 pieces), the seller, and also the manufacturer.

The approximate cost of HILTI nylon and metal dowels for a gas block of common standard sizes is shown in the table.

The price of the HILTI HPD anchor depends on the diameter of the working thread and the length.

Tips & Tricks

When installing dowels in the gas block, you cannot use a screwdriver, since this device operates on electricity, which makes it more difficult to control it. Such a device can break the thread by twisting the screw.

When making a hole for dowels in the gas block, it is important to take into account that they should not be larger than their diameter. Otherwise, the fasteners simply will not hold securely in the base.

The hole depth should be slightly more than the dowel length parameter. The tip of the screw must leave the dowel for maximum reliability.

Many people, having become acquainted with dowels, begin to use them at any opportunity. However, experts do not advise turning to too powerful mounts if you plan to hang hooks, pictures and other little things. For such purposes, simple plastic fasteners are more suitable, the size of which is about 8 mm.

About fasteners for aerated concrete - nylon dowel and metal dowel (crocodile), see the next video.

Characteristic

Aerated concrete is rightfully recognized as one of the most practical and affordable materials. It makes durable and strong houses, as well as reliable outbuildings. However, it should be borne in mind that this material has a cellular structure, faced with which you need to take into account many nuances. The main characteristic feature of such a material is its fragility and pliability. Porous blocks can be trimmed or trimmed away from them effortlessly. And also we must not forget that special fasteners are used for such a structure. Traditional fasteners tend to hold poorly in such bases, which makes the whole point of their use disappear.

For aerated concrete, special dowels should be used. The design of such parts is a spiral bushing, on the surface of which there are ribs. The last elements, while screwing in a self-tapping screw or screw, become wider, due to which they firmly enter the loose aerated concrete surface. This simple, but effective device can easily withstand impressive loads. With the use of special dowels, the owners of the dwelling have the opportunity to hang heavy decorative objects of any size on the walls.

Modern manufacturers produce these types of dowels in two variations. They differ in design features.

• By the shape of the ribs of fixation. Such fasteners can be equipped with a classic helical spiral or have cone-shaped ribs. The edges of the latter may resemble spiral-like blades.
• By the installation method. The dowels are either screwed into the base or driven into it. It is considered to be the most reliable ones that are screwed in. It is recommended to contact the hammered fasteners if the aerated concrete floor is planned to be equipped with a collet.

Tool and surface features

Installation tools:

• electric hand drill;
• drill with victorious soldering;
• hammer;
• wrench or screwdriver for screwing in a screw or screw;
• adhesive mixture for a chemical anchor;
• special gun for glue mixture.

The main condition for the installation of objects and devices is the correct choice of hardware.

Aerated concrete, having a porous structure, is a relatively fragile material, so the question arises - what hardware are needed for the fastening to be reliable and meet all the requirements for operating the structure.

There is a large range of products that make it possible to fasten structures reliably and quickly.

From the video below, you will learn about fasteners for aerated concrete.