DIN 6914 High-Strength Bolt

Many heavy and critical industries require high-strength bolts with characteristics regulated by the German standard DIN 6914. Other regulatory documents are also in effect, under which similar products are manufactured.

These include the domestic GOST 22353-77 and R 52644-2006, the European EN 14399 and the international ISO 7412. But to avoid design discrepancies during installation, the fastener purchased should be the one specified by the designers in the specification.

The application area of high-strength DIN 6914 bolts is not limited to the machine-building sector. These fasteners are needed by builders of bridges and coastal structures, and they are essential in the construction of large industrial plants and high-rise buildings.

Technical features and materials of manufacture

This fastener is fitted with an oversized hexagon head for a special wrench. The main purpose of the DIN 6914 bolt is to create strong joints during the assembly of steel structures capable of withstanding high operational loads, including dynamic ones.

FLOK supplies the full model range of high-strength DIN 6914 bolts, lengths 30-240 mm: from M12 to M42. We will also select matching nuts and washers with the corresponding technical characteristics. Various materials are used to manufacture the fasteners, which determine the intended application. Thus, bolts made of:

• carbon steel with property class 10.9, 12.9 are needed for heavy machine building, for machine tool assembly, and in construction for erecting heavy-duty metal structures;
• cold-resistant steel 110KhL are intended for use in Far North conditions;
• chromium-nickel austenitic steels grade A2 are used to create fastening joints operating in humid environments, while grade A4 withstands acids, alkalis and even seawater very well;
• brass are indispensable where the absence of magnetic properties and electrical conductivity is required.

High-strength DIN 6914 bolts made of alloy steels are produced in various finishes, including:

• zinc electroplating;
• hot-dip zinc powder application;
• thermal diffusion zinc treatment;
• oxidizing or no protective coating at all.

Plain steel bolts are protected from corrosion by special treatments once assembled together with the main structure.

Buy High-Strength DIN 6914 Bolt

FLOK offers high-strength DIN 6914 bolts for wholesale and retail buyers, working with legal entities and individuals on both one-off and long-term basis.

A high-strength DIN 6914 bolt with the required parameters can be selected on the website. If the needed fastener is not in stock, a pre-order can be placed.