Why is it important to use the correct torque on a bolt?

Using the correct torque on a bolt is crucial primarily to prevent issues such as stripping, over-tightening, or under-tightening, which can compromise the integrity and functionality of a mechanical assembly. When a bolt is over-tightened, it can lead to damage to the threads, causing the bolt to strip, which means it can no longer hold the joint securely. Conversely, if a bolt is under-tightened, it may not provide sufficient clamping force, leading to joint failure during operation due to vibrations or dynamic loads.

Proper torque ensures that the bolt exerts the correct amount of pressure on the components it is securing, which helps maintain structural integrity and safety. This is especially important in applications where high stress or dynamic loads are present, such as in automotive or aerospace settings. Overall, maintaining the correct torque is essential for reliable performance and longevity of the assembly.