The dowel is the most common fastener used in modern construction. It is made in the form of a plastic, metal or nylon rod having a point and a head in the form of a hook, ring, cylinder, spherical or flat hat with a slot. The body of this fastener may have a thread or an expanding mechanism. Used dowels for hollow materials, as well as for solid, for example, brick, concrete, stone, aerated concrete and others.
An expansion dowel is the most reliable and frequently used device for fasteners. Depending on the material and design, this element is intended for fastening screws and screws to the base with their further screwing. At the moment, this type of product is made of different materials: it can be plastic, metal or another material that has the required qualities and characteristics. Design may also vary greatly. An expansion dowel is selected depending on the purpose for which you wish to use it. For example, a metal dowel is used very widely if necessary to compensate for significant loads exerted on the surface, so it is suitable for hollow thin-walled structures.
Another useful and versatile
fastener can be considered a dowel for aerated concrete. It is used in conjunction with wood elements and chipboard screws. This fastener allows you to securely fix a variety of grilles, plumbing and electrical equipment, piping and consoles to the surface of aerated concrete. Such an expansion dowel is made of metal and polyamide of the highest quality. This tool has external ribs made in the form of a spiral, which allows you to double the product diameter while screwing the dowel. This is necessary for the distribution of pressure along the working area of aerated concrete as evenly as possible with a transverse or center draft. This fastening material is usually made of stainless steel of the highest strength, which made it possible to find the broadest application for them in the installation of windows, doors, suspended structures, and also much more to aerated concrete surfaces. The expansion bolt shield can have various sizes and shapes, while it is used in combination with self-tapping screws or screws, depending on the tasks.
The expansion dowel has a metal, plastic or nylon rod. With such fasteners, the body has a spacer mechanism, which expands during the screw-in process, which ensures the most durable fixation. This fastener can be used for mounting metal, wooden structures to a variety of surfaces, for example, brick or masonry. If we talk about external work, it is appropriate to use nylon fasteners, and polypropylene ones are intended for internal work. Particularly loaded structures can be secured with metal fasteners.