Inventors:
Anton J. Hirsch - Franklin Park IL
Assignee:
Cobra Metal Works Corp. - Franklin Park IL
International Classification:
B21D 5320
Abstract:
A method of forming an apparatus having a captured washer includes the step of forming a shaft with a first end, a second end, a shaft diameter, and an axis. A stop element is provided on the shaft. An integral washer is formed on the shaft spaced from the stop element. The washer has a thickness and a diameter greater than the shaft diameter. The washer extends generally perpendicular to and radially outward from the shaft. The washer has a first surface facing the stop element and opposite surface facing opposite the first surface. A button is formed on and extends axially from the washer opposite. The button has a diameter greater than the shaft diameter and less than the washer diameter. A groove is formed into the first surface of the washer and defines a washer opening having an inside diameter less than the button diameter. The groove is formed so that the washer remains attached to the button by a material bridge extending between the button and.