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When tightening a nut and bolt together, which component is typically turned?

The nut

The bolt

In the tightening of a nut and bolt assembly, it is standard practice to turn the nut rather than the bolt. The reason for this is primarily related to the design and function of the fastening system. When the nut is turned, it travels along the threads of the bolt, creating tension that secures the two components being fastened together. This method allows for better control of the tension applied to the joint since it typically requires less effort to turn the lighter nut compared to the heavier bolt.

Additionally, turning the nut helps to ensure that the load is distributed evenly and effectively along the bolt, minimizing the likelihood of damage to the bolt threads. This process also provides a more consistent rotational movement and can be more manageable in tight spaces where the bolt head cannot be easily accessed or turned.

Therefore, while both components are interconnected and function together, it is the nut that is generally turned to tighten the assembly effectively.

Both the nut and bolt

The washer

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