For a secure joint with a HEICO-TEC® Tension Nut, no electric, hydraulic, or pneumatic tools are needed. All you need is a torque wrench.
The HEICO-TEC® Tension Nut is unique in the fact that the pretension force of the large main thread is distributed to many smaller pressure bolts. Because the pressure bolts are smaller, a conventional torque wrench can be used to achieve the correct pretension force. This eliminates the need for complex, bulky, or heavy tools and makes securing large bolted joints more convenient and easy.
* Easy, fast and reliable assembly of large bolted joints
* High preload force due to torsion-free assembly
* Controlled friction characteristics ensure the highest tightening and
repeat accuracy
* Losses from settlement of the joint do not occur and full capacity of
the joint is achieved
* Tension nuts and reaction nuts are compatible with common strength
classes according to ISO 898-2
* Can be re-used several times
* Standard available from M20-M120 strength class 8 and M20-M90
strength class 10
* Other strength classes, bolt sizes, thread types and thread pitches are
available on request
