SAPER LOCK® locknut
The FUJILOK U-NUT has an international reputation built on over 30 years.The FUJILOK U-NUT is used worldwide in many engineering
The FUJILOK U-NUT has an international reputation built on over 30 years.
The FUJILOK U-NUT is used worldwide in many engineering applications. It is recognized as the most reliable of allmetal locking nuts. The FUJILOK U-NUT can be customized to fit your unique requirements with regard to material, dimension, and finish.
FUJILOK U-NUT is used by Government civil and defense projects , public utility corporation (water, energy), railways, and many leading manufacturers.
The FUJILOK U-NUT is comprises of a nut and friction ring (special spring stainless steel) .
The friction ring is attached to the top face of the nut by crimping.
A stress P is produced by the spring effect of the stainless steel friction ring coming into contact with the screw thread as shown in the illustration. The P and its reaction force P’ press strongly against the screw threads to produce a frictional torque(prevailing torque)above The prevailing prevents the turning of the screw,generation an excellent locking effect.