DIN981/GB912/GB810 M75 Round Nuts

Made from Austenitic stainless steel, they contain about 18-20% chromium and 8-10% nickel, offering exceptional corrosion resistance and good machinability.In the chemical, petrochemical, and food processing industries, SS304 nuts are favored due to their corrosion resistance and hygiene properties. They are also widely used in medical devices, architectural decorations, and machinery.

Stainless Steel DIN981/GB912/GB810 M75 Round Nuts are manufactured from AISI 304 (A2) stainless steel , containing 18–20% chromium and 8–10% nickel. This material offers excellent corrosion resistance, performing well in ambient conditions, resisting various chemical media, and maintaining stability at elevated temperatures. It is easy to machine and weld, making it ideal for manufacturing and processing applications.

The M75 designation indicates a nominal internal thread diameter of 75 mm , paired with a coarse-thread profile for compatibility with coarse-threaded rods or bolts. The "NO MARK" specification means the surface is free of engravings or coatings, retaining the natural finish of stainless steel. This ensures a clean appearance, wear resistance, and ease of batch identification.

Mechanically, these nuts achieve a tensile and compressive strength of approximately 700 MPa , suitable for medium- to heavy-duty industrial structures and machinery requiring reliable fastening. SS304 maintains stable performance even under continuous high-temperature exposure (up to ~925°C ), ensuring durability in demanding environments.

Typical applications include industries such as chemical processing, petrochemicals, food handling, pharmaceuticals, medical equipment, architectural decoration, marine engineering, nuclear power, and wind energy . The corrosion resistance and hygienic properties of SS304 make it a preferred choice for environments requiring contamination prevention and strict cleanliness standards.

Compliance with DIN 981 and GB 810/912 standards guarantees precise dimensional tolerances, slot geometry, and mechanical parameters. This ensures global interchangeability and compatibility, simplifying design, procurement, and maintenance processes across international supply chains.