Welding fasteners are used to create a super-strong and permanent connection between steel and the fastener. They are often chosen for their efficiency and ability to create unbreakable welds with the surface.
Stud welding, or spot welding, is the process of welding a fastener directly to the surface of a metal material. This allows other fasteners that would otherwise not connect to the material the ability to connect. These welds tend to be strong enough on their own that no extreme or complicated welding equipment is required.
Weld Fasteners were originally created in the early 1900's. They first became popular when the Automotive company - Ford Motor Company - decided to use them on the frame of a car (Model A) to make it easier to assemble the fenders.