[Bolts]

Here's one I made to form a patch for a rusted out section in my 48 coupe floor board. It consists of several pieces of sawed off 3/8 thick hot rolled steel strips that are assembled to form a pocket and a bent piece of 3/4 hot rolled steel bar used to form the shape.
I placed a piece of 18 GA steel sheet on the tool and heated it up red in the center then pounded the forming rod with a hammer to create the finished part.