What is roll bolt and what is its use in building a wooden house?

Roll bolt is one of the widely used construction materials, which is used to connect various objects to concrete and similar materials. In order to connect and weld iron beams, round rods, corners, etc., a base plate is needed, and this plate must be connected to the concrete at the foundation of the building.

Roll bolts are used to connect this base, which is usually a metal plate and is called a base plate.

These plates provide the possibility of connecting and welding various metal parts to the concrete structure in order to implement various types of dry and composite facades, implement mechanical and electrical installation supports, install equipment and machines, etc.

But what is important in this is choosing the right anchor bolt according to the type of performance, size, load capacity and installation limitations.

Due to its structural shape and installation method, roll bolt or anchor bolt creates a very strong and resistant connection between various objects and structures such as columns or industrial devices to concrete, brick or stone.

The roll bolt consists of a screw with two different ends, one end is conical and has a grooved metal cylindrical housing, and the other end is a threaded rod with a washer and a nut.

The nut is intended to secure the roll bolt inside the bed. The material of high-quality roll bolts is zinc-coated steel to resist corrosion.

The way to use the roll bolt is to first insert the conical head of the screw into the hole created in concrete or stone.

Then, by closing the nut of the roll bolt, the grooved cylinder is gradually pushed inward by the washer, and the groove is opened on the conical head, and this cylinder gradually increases in volume.

In this way, the roll bolt is stuck on the inner side by increasing the volume of the cylinder and on the outer surface by the nut and washer, and the connection is tightened.

Types of roll bolts
Roll bolt performance:

The working mechanism of the roll bolt is mainly mechanical and expansion, but in some models, expansion, friction, adhesion or a combination of these methods are also used.
Application of roll bolt:

As mentioned, roll bolts are generally used to connect other objects to the bed. This subject has a lot of use in industry and construction.

But the way to use the roll bolt affects its use. Here are some examples of roll bolt applications in industry and construction.
Use of roll bolts in construction:

One of the most important applications of roll bolts in construction is related to connecting the base of columns or other metal structures to concrete. As you know, the foundation of buildings is made of concrete, and connecting metal columns to concrete requires a metal substrate or plate.

Roll bolt makes this substrate or metal plate connect well to concrete. Then columns and other structures are connected to this metal plate by various processes such as welding.

Except for this case, roll bolts are used to install false ceilings, building exteriors, various partitions, fences, elevator chassis, escalators, etc. to concrete.

The method of using roll bolts in all these cases is almost the same, but usually metal plates are not used to install these items to concrete, and the roll bolts are used directly.
Application of roll bolts in industry:

In many industries, various equipment and machines are used, which must be fixed in place. For this reason, roll bolts are usually used in the industry to connect and fix various machines and equipment.

In addition, roll bolts have applications in the installation of rails. Very strong roll bolts are also used to install different masts.

This tool (roll bolt) is sometimes known as anchor bolt, expansion bolt. Anchorbolt has different types and models according to the needs of the consumer and the location and type of materials of the intended place for planting rollbolts.

including normal sheath roll bolts, medium-use roll bolts such as HSA, high load capacity roll bolts such as HSL, ceiling or chandelier roll bolts, internal thread anchors or HKD, chemical roll bolts, butterfly or spring roll bolts, etc.

Types of roll bolts
Roll bolt dimensions:

The dimensions and sizes of roll bolts are different according to the type and depth of work. As an example, from the smallest size, which is 50x5 mm, which fits in the palm of a person, to 30 cm and…
Planting steps of roll bolt:

If you intend to plant different types of roll bolts, you must first have enough information about the internal organization of roll bolts and then proceed to plant roll bolts.

Do not forget that there are different types of roll bolts and each type is better to be used in its own area because the products of bolts and nuts and roll bolts are made of different raw materials and laboratory environment according to the environment and application of roll bolts. They use roll bolt production.

The first step: Making a hole in the roll bolt planting site
Second step: putting the roll bolt in the created hole and connecting the desired work to it
Third step: Turn the roll bolt nut clockwise with a wrench and operate the roll bolt.