A direct tension indicator looks like what?

A direct tension indicator is designed to provide a visual indication of the amount of tension applied to a bolt during installation. It typically features a washer with arch-like protrusions. When the bolt is tightened, these protrusions flex and deform, allowing for a more accurate assessment of the tension achieved. The unique design allows for a quick visual inspection, making it easier for installers to ensure that proper tension has been attained, which is critical for structural integrity in steel connections.

This design stands out compared to other types of tension indicators or washers that might not have the same visual monitoring capability. The direct tension indicator's arch-like protrusions are specifically engineered to respond to the applied tension, offering reliable feedback during the installation process.