Torque resistance

Direct torque
This test represents component resistance when unscrewing a seized nut.
Test conditions:
- grade 10 nut
- High Elasticity Limit metal sheet for hexagonal body, in order to reduce the influence of metal sheet resistance.

Indirect torque
In most cases, indirect torque resistance is higher (even much higher) than recommended maximum tightening torque for 8 grade nuts with a friction coefficient of 0.20.
The value shown in the data sheets has therefore been limited to the recommended maximum tightening torque for 8 grade nuts with a friction coefficient of 0.20.
In other cases, the value shown in the data sheets corresponds to the recommended torque value that is compatible with CLUFIX-STUD™ indirect torque resistance.

The hexagonal body guarantees high torque resistance and easy dismantling.

Recommended maximum tightening torque (N.m) - NF E25-030 (8 grade nuts)

Tensile force

Test method enabling assessment of the tensile force and thread, independently of the workpiece support.

Push-out force

This test assesses the resistance of CLUFIX-STUD™ to pushing in the opposite direction to that in which it was installed.

Data presented in the tables above is provided as a guideline only. These values vary in accordance with the materials used and implementation conditions. It is recommended that tests be conducted in the actual application conditions.