The tension in a bolt can be calculated using the following formula:
```
T = F * A
```
Where:
* T is the tension in the bolt
* F is the force applied to the bolt
* A is the cross-sectional area of the bolt
The tension in a bolt should not exceed the yield strength of the bolt, which is the point at which the bolt begins to stretch permanently.
To summarize, tension in a bolt refers to the internal force that resists stretching when an axial load is applied, causing elongate. It's a critical quantity to consider in any bolted joint design to ensure the bolt performs effectively without experiencing failure due to excessive tensile load.
