U-NUT® self-locking nuts

Böllhoff standard 53030 | Nut material: S45C | Zinc-plated | Material insert: stainless steel | Cr(VI) - free | Metric regular thread

Highest security for your threaded connection. U-NUT® nuts are a reliable and proven solution for all applications where the screws play a crucial role in ensuring function and safety and where it is essential to prevent the preload force from being lost and the connection from falling apart.

The integrated sheet metal spring ensures that the U-NUT® nut maintains a consistent and controlled clamping force on the thread and that a certain amount of preload force always remains in the connection. Even under maximum loads. The geometry is precisely matched to the screw thread so that repeated tightening is possible throughout without any problems. Since the effectiveness of U-NUT® nuts does not depend on a defined high level of preload force, they are suitable for use with preloaded connections as well as with soft components and can be assembled with simple tools. U-NUT® will always secure your connection.

Benefits:
• thread clamping for maximum safety
• easy to assemble
• excellent refastening properties
• temperature and UV-stable compared to conventional locknuts with PA ring

Application examples:
• robotics
• motors
• pumps
• elevators
• machining