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Benefits of Precision Torque Wrench Tightening

Bossard recommends controlling tightening with a precision torque wrench for a number of reasons, not the least of which is the fact that it represents a secure and economical solution. This state-of-the-art method for tightening screws and nuts can reduce the number of fasteners used, especially in comparison to tightening without torque control.

M14x25 screws are the obvious choice for uncontrolled tightening for several reasons. You need to achieve a specified minimum preload in the joint, while also avoiding a torsional fracture. But what if the same can be accomplished with an M8x25 screw under torque control?

You can achieve the same minimum preload needed in the joint with an M8x25 screw, as long as the operation is conducted under torque control. By using this control to avoid the risk of a torsional fracture, the screw diameter can, in turn, be reduced to M8.

If a screw is tightened too much, it can break. If not tightened enough it can become loose or fail as a result of material fatigue. Precision torque tools and practices will protect the assembly from failure.

Suddenly, tightening with a precision torque wrench becomes the more effective and efficient solution.

There is also a substantial difference in the purchasing price of these fasteners. But don’t forget about the total cost savings of using controlled tightening. Because the entire product can now be made smaller and with a reduced weight, the overall cost savings will be significant.

So the question is: Why haven’t you started using precision torque wrench tightening yet?

If you would like to speak with one of our knowledgeable engineers for further guidance on how to implement something similar to this, contact Bossard at ProvenProductivity@bossard.com.


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July 03, 2015

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