Rivets
Rivets have been around a REALLY long time. The first version of a rivet, which was made of wood, was used in Ancient Egypt around 3000 B.C, where they were used to manufacture different types of tools.
In an Airstream Lifstyle blog post we learn that by the mid-19th century, advances in metal technology signaled the dawn of the modern-riveting era. Riveting became the primary method for constructing metal tools, buildings, and vehicles.