DIN981/GB912/GB810 M68 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 M68 Round Nuts are 304 stainless steel round nuts that comply with DIN 981 / GB 912 / GB 810 standards, with a core specification of a larger M68 nominal coarse thread.

Material and Specifications: Made of corrosion-resistant SS304 stainless steel, the surface remains natural and has no thread markings. The thread is a standard M68 coarse thread, which is the largest size currently introduced (M60 < M64 < M68).

Standards and Strength: Strictly follow DIN 981 (German standard) and the equivalent national standard GB 912 / GB 810 to ensure interchangeability. Its 700PA (about 700 MPa) strength index remains unchanged, which means that it can still provide high load-bearing capacity at the larger M68 size.

Core application differences: This M68 super-large size design makes it mainly for super-heavy equipment or structural connections that need to match giant bolts and bear extremely heavy loads. While maintaining the corrosion resistance and standard strength of 304 stainless steel, it is specially used in engineering occasions that require higher levels of physical size and absolute bearing capacity of connectors, such as key parts of large engineering machinery, heavy bridge structures, large pressure vessel flanges or special industrial equipment.

This M68 stainless steel round nut (DIN981/GB912/GB810) is consistent with the M60/M64 model in material (SS304), strength (700PA), standards and basic characteristics. The most significant difference is the larger M68 thread size, which is designed to meet the rigidity requirements of matching large bolts and bearing extreme loads in super-heavy connection scenarios.