Innovation in screw locking



The innovative thread-lock principle ensures a secure threaded connection, even in adverse conditions and with repeated screwing.

The applied preload force is retained in the joint for the duration of use. SAPER LOCK® nuts are used in a wide range of applications from complete anti-rotation locking and loss prevention, to serving as adjusting and setting elements.

Böllhoff parabola


Your benefits at a glance

  • Self-locking locknut
  • Reusable
  • Complete anti-rotation lock
  • Adjusting nut and loss prevention
  • Simple to use
  • Efficient application - reduction of maintenance costs
SAPER LOCK® nut – screw locking


screw locking


Find out more: related downloads.

If you would like to know more, simply download the relevant brochures.

Title Language Version File Download

To view PDF documents, you will need the free Adobe Acrobat Reader.

More information

Would you like to discover more of the World of Joining?

Here you will find information about successful applications and related topics.