DIN981/GB912/GB810 M52 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 M52 Round Nuts are M52 stainless steel round nuts that meet the requirements of German DIN 981 standards and Chinese GB 912 and GB 810 standards. They are made of austenitic stainless steel SS304 (AISI 304).

The core function of this nut is to achieve reliable axial fixation of shaft components (such as bearing inner rings and sleeves). Its notable feature is that the end face has a special groove, which is designed to be used with locking washers (stop washers) of corresponding standards. By snapping the washer tongue into the nut groove and fixing it on the shaft, an effective anti-loosening structure is formed to prevent the nut from loosening due to vibration or rotation during equipment operation, ensuring the stability of key components.

The nut is made of SS304 stainless steel, which contains about 18-20% chromium and 8-10% nickel, giving it excellent corrosion resistance (resistance to atmospheric, water vapor and various chemicals) and good processing performance. The material is non-magnetic after solution treatment, and the surface maintains its natural metallic color without additional coating treatment. This feature makes it popular in industries that require corrosion resistance and sanitation, such as chemical, petrochemical, and food processing, as well as in the fields of medical equipment, architectural decoration, and mechanical equipment.

The specific specifications are nominal thread diameter M52, with coarse threads, which have the characteristics of strong load-bearing capacity, convenient assembly, and high tolerance to minor damage. There is no special mark on the threaded part (NO MARK). The minimum tensile strength of the nut material is 700 MPa, indicating that it has a high load-bearing capacity and is suitable for heavy-duty applications that require large loads and reliable locking. When using, it must be matched with a standard locking washer to exert its designed anti-loosening function.