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DIN 933

DIN 933 is a standard from the German Institute for Standardization (DIN) for hexagon bolts with full thread. This standard defines the dimensions, tolerances, and mechanical properties of hexagon bolts used for general fastening purposes in various industrial and commercial applications. Hexagon bolts according to DIN 933 are available in various sizes and materials to meet different requirements.

Features and Dimensions

  • Available in various diameters and lengths (common thread sizes M1.6 to M52)

  • Full thread over the entire shank and hexagonal head for easy handling with wrenches or ratchets

  • Standardized dimensions ensure a reliable and uniform fit

Materials and Surface Treatments

  • Steel (grades 8.8, 10.9, 12.9)

  • Stainless steel (A2, A4)

  • Brass

  • Plastics

  • Optional surface treatments to enhance corrosion resistance:

    • Zinc plating

    • Blackening

    • Nickel plating

Applications

  • Mechanical engineering: fastening parts and structures in machines and equipment

  • Automotive industry: securing bolted connections in vehicles

  • Construction industry: securing structural connections in buildings and bridges

  • Household appliances: fastening components in various home devices

Assembly and Use
When installing DIN 933 hexagon bolts, it is essential to choose the correct size and appropriate material to ensure optimal performance and longevity. Bolts should be tightened with a suitable wrench or ratchet to the correct torque. For high corrosion resistance applications, use appropriately coated bolts.

Conclusion
DIN 933 hexagon bolts are essential fastening elements in many mechanical and structural applications. Their standardized dimensions and materials ensure a reliable and secure connection that meets the demands of diverse use cases.

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