The new DIN standard for high -strength bolted connections has been introduced

A new DIN EN 14399-3 standard has been developed, which sets the requirements for high-strength sets of hexagonal bolts and nuts in the HR system with a large turnkey width in the size of M12-M36 and strength classes 8.8/8 and 10.9/10.

The DIN standard is named after its developer - the German Institute for Standardization (Deutsches Institut Für Normung), which creates the basis in global standardization. The purpose of standardization in DIN is to develop unified standards around the world. They provide a decrease in technical barriers and contribute to the high level of manufactured products.

In connection with the release of the process of developing regulatory documentation at the international level, standards with the designation Din En, Din En ISO and others began to appear. So bolts in the German standard DIN 933 (bolt with a hexagonal head, 8-40 mm long, M5, M6, M8, M8,) are an analogue of GOST 7798-70, GOST 7805-70, ISO 4017. acquiring stizes wholesale wholesale DIN standard, you can always be confident in the high quality of products.

On March 1, 1918, the first DIN standard in history appeared, then the German industrial standard. He installed dimensions and materials for conical pins. These connecting elements have a conical shape and are introduced into the corresponding holes in the detachable joints. Preparatory work began in the summer of 1917 under the auspices of the Association of German Engineers (VDI). A survey of 120 companies was conducted that gave detailed answers to questions about their practical experience in applying conical pins. After analyzing all the data, DIN employees created their first standard.