DIN 508-28-M20-8 hexagonal nut Z055630

DIN 508 castellated nut – reliable fastening in various applications

The DIN 508-28-M20-8 castellated nut is a fastening element widely used in machines, equipment and metal structures. Manufactured in accordance with the DIN 508 standard, it provides solid and secure threaded connections. Its design, with a characteristic slot, allows mounting with a castellated nut wrench, which facilitates and speeds up the installation process.

Construction and materials

This nut is available in various material versions – steel and stainless steel. The steel version is heat-treated, which ensures high tensile strength (class 8). This makes the nut resistant to loads and vibrations, guaranteeing long-term connection reliability. Versions made of stainless steel AISI 316Ti and AISI 304 are also available, providing corrosion resistance in harsh environmental conditions.

Applications and benefits

DIN 508 castellated nuts are ideal for applications requiring secure fastening of structural elements. They are widely used in:

• Mechanical engineering: fastening machine and equipment components.
• Construction: metal structure elements, screw connections.
• Automotive industry: assembly of car components.
• Power industry: fastening elements of electrical and mechanical installations.

By choosing the DIN 508-28-M20-8 castellated nut you gain:

• Strength and reliability: thanks to the high strength class of steel.
• Easy installation: the castellated slot allows quick and convenient tightening with a castellated nut wrench.
• Corrosion resistance: stainless steel versions ensure durability in harsh conditions.
• Compliance with the standard: guarantee of quality and dimensions in accordance with DIN 508.
• Versatility: wide range of applications in various industries.

Additionally, it is worth remembering that DIN 508 class 8 nuts can be supplied as solid elements (without a hole), which increases their strength in specific applications – when ordering, the thread size designation should be omitted from the catalog number.