High-strength bolts GOST 52644-2006, bolt high strength

The high strength bolt is one of the varieties of threaded fasteners, the distinguishing feature of which is increased strength. Can be used complete with washer and nut, one or more. When using high-strength bolts, the holes that are being manufactured, should be in diameter larger than the fastener. The design of this kind of fasteners is a set of a cylindrical rod, one end of which is cut a metric thread and hexagonal head. Its size may be increased under the wrench. Height varies within the limits of GOST.
For the production of high-strength bolts are used the following brands of alloy steel: 30Х2НМФА, 20Х2НМТРБ, 30Х3МФ, 40X "select". The level of strength of the product depends primarily on the composition and quality of raw materials, and therefore this indicator is of great importance. According to the regulations, high-strength bolt shall withstand a force up to 1100 PA.
To improve corrosion resistance bolt handle cadmium or zinc electrolytic or hot coating, the composition of which is determined by GOST.
The bolting is directly dependent on their operating characteristics, they are used in heavily loaded structures, in climatic zones characterized by significant temperature changes, chemical industries. The connection that use this type of fastener is highly resistant to tearing, and permanent dynamic or static loads. They are ordered to complete following mechanisms: some types of agricultural equipment, building and bridge structures and fencing, cranes, trains and others.

To buy high-strength bolts at the wholesale price at a metallurgical plant UVALDA by phone +7-343-361-23-10 or order via email zavod@avalda.ru. Own production, quality assurance.