DIN 555 Hex Nuts, Product Class C - ISO 4034 Hexagon Regular Nuts (Style 1), Product Class C

The DIN 555 standard published by the German Institute for Standardization (DIN) describes the requirements for hex nuts (product class C).

Similarly, the ISO 4034 standard published by the International Standards Organization (ISO) describes the characteristics of hexagonal regular nuts (product class C) with threads from M5 to M64 (ISO 4034 Hexagonal regular nuts, style 1 - Product class C). In special cases, if specifications other than those listed in this standard are required, international standards such as ISO 724, ISO 898-2, ISO 965-1 and ISO 4759-1 should be followed.

Steel, stainless steel, brass, mild steel, bronze, aluminum, and titanium are among the materials used in the production of hexagonal nuts. Additionally, any material can be used according to the customer's specific specifications and requirements .

These nuts are generally used in machinery and equipment to fix external threaded fasteners such as bolts and screws. Suitable for most fixing and lighting applications.

In practice, the strength class of a nut must generally be the same as or superior to the strength class of a bolt. For example, if a bolt with a strength class of 8.8 is used, the nut to be used must have a strength class of 8 or higher, never lower.

The ISO 4034 standard belongs to a group of product standards developed by ISO on hex drive fasteners. This product group includes:

• hex head bolts
• hex head screws
• hex nuts
• flanged hex bolts
• flanged hex nuts

Due to its high resistance to corrosion, hex nuts are preferred in machinery and equipment in sectors where laws or certain hygienic, climatic and environmental factors require the use of corrosion resistant materials.

Among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, within the scope of DIN 555 standard, for hexagonal nuts (product class C) and within the scope of ISO 4034 standard, hexagonal regular It also provides testing services for nuts (product class C).