如何使用扭矩将螺母正确拧紧到螺栓上

So what is the purpose of proper torque and the importance of doing it right? When we speak about tightening a nut to a bolt to compress the parts in between them, initially it can be easily screwed in until all the parts between them come together. This is when we work-the-torque! Although we may not be able to see it, a bolt actually stretches similarly to a rubber band, just that at a much slower pace that makes it impossible to see with our naked eyes. As the bolt stretches, it is squeezing every little possible space between the parts. This is when using the correct torque matters! A good stretch prevents loosening of the bolts as well as fatigue. However, without the correct torque, the bolt and nut is either not tightened or tightened to a point where it reaches its weak spot which can easily break.