Tightening a structural-steel bolt, tiny spurts of orange silicone spread out from a washer beneath the nut. Satisfied, the ironworker moves on to the next bolt. There is nothing new about direct ...

Most mechanical bolted joints and connectors come with the appropriate hardware, but what happens when you have to provide your own?What's in a bolted joint? This seems like a simple question. You ...

If there’s an enduring image of how large steel structures used to be made, it’s probably the hot riveting process. You’ve probably seen grainy old black-and-white films of a riveting gang — ...

The proposed bypass fix for the troubled Fremont Street girders of San Francisco’s Salesforce Transit Center calls for bolting 20-in.-wide steel cover plates above and below the area around each ...