No major construction, whether it is the construction of a house, or the construction of cottages, does not cost without fasteners. Any experienced builder knows that the reliability of the finished building is largely dependent on the quality of fasteners.
Unreliable elements made without compliance with the necessary technologies, from poor-quality material can cause serious problems and destruction of the entire design of the building.
Perhaps on the fasteners each owner is trying to save maximize. And in vain, because much more efficient and economical will use decent items than producing expensive repairs.
Nut is one of the most common types of fasteners. Technically, it is a product in the form of a prism having, as a rule, six faces, and a threaded hole in the center.
It is used complete with such types of fasteners like studs, bolts, screws and other products, in addition to them can also be used washer. The main purpose is a rigid or free connection of parts with each other.
The nut for over a hundred years, its invention and the application brought the construction of buildings to a new level, made it possible to do at home more, build them in several floors.
There are no such construction works, wherever the Nuts are used. They serve for reliable fasteners of the design, providing her durability and durability. And a house from a bar or logs, and metal structures - all these areas of applying nuts.
Nuts GOST. Production
In the manufacture of products such as a GOS nut is of great importance, as it describes not only the size range, but also the terms of manufacture, as well as the materials used for this.
There is a list of manufacture requirements that will provide the quality and strength of the product at the output.
As already mentioned, non-compliance with the initial parameters makes the finished product of poor quality, and it, in turn, is ruined by the whole building.
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There are several guests, according to which product data is made. The most common one is GOST-5927-70, it regulates the production of hexagon nuts, corresponding to 4,5,6,8,10,12 grades of strength with the class of accuracy A.
Thread tolerance field - 6H, metric carving, right or left, thread step can vary.
A similar product with a difference in the accuracy of manufacture is a nut made according to GOST 5915-70.
It has the class of accuracy B. The hexagon nuts of these guests are produced from carbon doped steel and have a zinc coating that protects them surface from corrosion.
The steel grades are 20G2R, 09G2C, 40X and some others.
In addition to the above guests, other regulations are used to produce nuts.
Produced products have more specific applications and characteristics. Here is some of them:
- GOST 22354-77. The nuts produced on it have increased strength, its class is from 8 to 10.
- GOST 16018- 79. It is used for the manufacture of nuts, completing with terminal and mortgage bolts. Such a fastener is used to fix rails on the railway tracks.
- GOST 5932-73. Correct and slit nuts of increased accuracy.
- GOST 3032-76. Parashka type nut, so-called American.
In general, about three dozen different guests are used to produce different types of nuts.
According to them, these fasteners are manufactured not only from the above steel grades, but also other having high heat-resistant, corrosion resistance and other qualities. Also for the production of nuts use non-ferrous metals and their alloys.
The sphere of applying nuts is extremely wide and diverse. They are in demand everywhere where it is required to provide a solid connection of parts. Perhaps, even the foundation for the house sometimes requires a strong formwork connection, and therefore requires the use of nuts.
A feature of the use of this fastener is the ability to adjust the stiffness of the connection by using a different tightening of the nut. The tighter tightened the nut, the tougher the fastening. However, the use of effort is not always required to secure the nut.
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In the specific application of such a product, like a nut, GOST, on which it is made, plays an important role.
So, for example, large thread nuts are applicable to use under high load, with small - it is better to oppose selflessness.
In the reliability of the threaded fastening with the participation of this element, high-quality surface preparation is of great importance: it is necessary to ensure complete fit to it the plane of the nut.
By mounting the flooring of the house to use better nuts with a large thread, beating about their high resistance to large loads. Small works are perfectly carried out with nuts with fine carvings.
If you have any questions, go to our construction forum and ask them there. We will tell you how to build a house or a cottage, make repairs without loss and while saving.