Hydraulic nut

Hydraulic nuts replace the existing 6-sided nut and provide an accurate and well distributed bolt load over the application. They are designed to be as compact as possible to fit as many applications as possible. Hydraulic nuts ensure the required preload in high load applications, while preventing loosening due to vibration and dynamic loading.


  • Top or bottom collar: Gives flexibility
  • Fast, permanent installation
  • Compact design and a wide range
  • Precise pre-tensioning