DIN981/GB912/GB810 M30 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 M30 Slotted Round Nut is a commonly used shaft-end fastener made of stainless steel 304, offering excellent corrosion resistance and mechanical strength. It is suitable for bearing locking, component positioning, and rotating connections in various environments. This product complies with the German DIN981 standard and Chinese national standards GB912 and GB810, and is ideal for applications such as bearing housings and mechanical shaft ends where reliable locking performance is required.

Structural Features:
1.Round slotted design : The outer edge of the nut features evenly distributed slots, allowing easy installation and removal using a hook wrench or similar tool, ensuring convenient operation.
2.Coarse thread structure : Enhances vibration resistance, making it suitable for mechanical systems subject to impact or vibration.
3.Material: Stainless Steel 304 : Provides strong rust and oxidation resistance, suitable for humid, ambient temperature, or mildly corrosive environments.
4.Natural metal finish : Without electroplating or coating, the surface remains simple and clean, preserving the natural appearance of the material while maintaining both aesthetics and functionality.

Typical Applications:
This type of round nut is widely used in equipment such as machine tools, motors, fans, pumps, and reducers for bearing fixation and shaft end locking. It is also suitable for positioning and anti-loosening connections of rotating components in general industrial machinery. By applying axial preload, it effectively prevents bearing loosening or axial movement of parts, thereby enhancing the stability and reliability of the entire system during operation.

If higher anti-loosening performance is required, it can be used together with a locking washer (e.g., DIN5406 type) to further enhance the locking effect, meeting the daily application needs of medium-duty mechanical equipment.