The screw is fastening elements that are common in the most. It is used to carry out a detachable connection. The design of this tool is as follows: it is made in the form of a rod with a hat and a metric thread. And its installation is carried out exclusively using a screwdriver or screwdriver.
Species diversity:
There are din 912 screws, in which the head has a semicircular or cylindrical shape. Swear with a semi -lane and hidden heads are also common. Such tools have internal hexagons. For their production, in most cases, manufacturers use alloys such as stainless steel, brass or copper.
Product catalog offers to the attention of potential buyers screws, which are made exclusively taking into account all the norms and requirements of DIN 912 8.8 Zn. Such a tool is a bolt with a cylindrical head. In its center there is an inner hexagon. Using such a tool, high -strength fastening of metal structures in those places where there is no way to use another tool is ensured. The screws are characterized by anti -vandal properties and are made taking into account the standards: GOST 11738, DIN 912, ISO 4762.
Such a tool is actively used in areas such as industrial or private construction, mechanical engineering, as well as sometimes used in the manufacture of furniture items.
Thanks to the use of high -quality raw materials, which is resistant to corrosion processes, and the bolt itself ensures resistance to aggressive environmental factors.
Parameters and properties
The screws are characterized by the following parameters: Standard size – from 4×10 mm to 12×120 mm.
The DIN 912 screw is produced in two versions: with full or incomplete thread.
Steel products of this kind are covered with a galvanized and oxidized layer, as a result of which, they differ in high strength: 8.8 and 10.9.
Stainless or carbon steel is used as raw materials for the production of Din 912 screws. And the fasteners are covered with a galvanic or oxidized layer to give a design of greater resistance to exposure.
The strength of the strength of goods of this kind is customary to indicate with the help of two digits indicated through the point. So, the strength class of the screws produced in accordance with the requirements of GOST 11738-84 will have the following designation: 8.8; 10.9; 12.9.
