DIN981/GB912/GB810 M72 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 corrosionresistance and hygiene properties. They are also widely used in medical devices, architectural decorations, and machinery.

Stainless steel DIN981/GB912/GB810 M72 round nuts are heavy-duty fasteners with a diameter of 72mm. They are made of 304 austenitic stainless steel, containing 18–20% chromium and 8–10% nickel. They have excellent corrosion resistance, high temperature resistance and good machinability.

This product adopts a coarse thread design, which is suitable for high load, frequent disassembly and vibration resistance. The thread is unmarked (NOMARK) and can be used with a variety of mating parts. It complies with international and domestic standards such as DIN981, GB912, and GB810, strictly controls the size and thread accuracy, and ensures compatibility and reliability with standard shaft parts. The 700PA strength grade enables it to withstand the load of large equipment and is widely used in key structural fastening fields such as wind power, heavy machinery, flange connections, and ship shafting.

The appearance is the natural color of stainless steel, without electroplating treatment, retaining the material's own anti-oxidation properties and simple texture, suitable for industries with high corrosion and high cleanliness requirements, such as chemical, petrochemical, food processing, medical equipment, architectural decoration, etc. SS304 material not only meets the sanitary requirements, but also reduces the hidden dangers of surface treatment degradation.

Compared with hexagonal nuts, round nut structures are more suitable for use with retaining washers, retaining rings or spiral baffles, which can effectively prevent loosening and enhance the safety of the overall connection. In addition, its sliding and rotational compatibility is better, which is convenient for use in shaft ends, bearing installations and structures that require free rotation.

M72 stainless steel round nuts take into account high strength and corrosion resistance, and the structural design is flexible and reliable. It meets a variety of harsh industrial scenarios and is an indispensable key component in the fastening system of industrial equipment.