DIN981/GB912/GB810 M45 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 M45 Round Nuts combine high corrosion resistance with mechanical strength, making them suitable for fastening applications in industrial equipment, heavy machinery, chemical pipelines, and maritime environments. With a nominal diameter of M45 , these nuts are designed to mate with large bolts or shafts, meeting the demands of high-load locking scenarios.

Constructed from SS304 stainless steel (containing 18% chromium and 8% nickel), the nuts exhibit excellent resistance to acids, alkalis, oxidation, and high-temperature degradation, ensuring long-term durability in humid or corrosive conditions. The coarse-thread design (COARSE) features a larger pitch for efficient assembly and disassembly, ideal for applications requiring rapid installation without compromising functionality. The threads carry no special precision markings (NO MARK), adhering to standard industrial tolerances for general-purpose use.

Compliance with DIN 981 (German dimensional specifications for round nuts) and GB 912/GB 810 (Chinese standards for bolt and nut technical requirements) ensures dimensional accuracy and interchangeability, facilitating domestic replacements for imported equipment. While the stated strength of "700 PA" may involve a unit discrepancy, the actual tensile strength of SS304 typically ranges between 500–700 MPa (subject to testing verification), sufficient to withstand substantial axial loads. The surface remains in its natural color (as-finished), retaining the inherent aesthetics of stainless steel without coatings, eliminating risks of contamination from peeling layers, and meeting hygiene-critical applications such as food processing or medical equipment.

Typical applications include bearing fixation, shaft end locking in large machinery, anti-loosening connections for vibrating equipment like crushers and screens, corrosion-resistant flange fastening in chemical and marine systems, and general-purpose replacements during heavy equipment maintenance. For optimal performance, installation is recommended with a torque wrench to control preload and prevent thread damage. In chloride-rich environments (e.g., coastal or marine settings), upgrading to SS316 stainless steel (AISI 316) is advised for enhanced corrosion resistance.