Extruded holes very close to the part edge can lead to sheet metal deformation or tearing.
Extruded sheet metal hole.
Extruded holes unipunch tooling can be used to simultaneously punch a hole and extrude the material down.
Creating an extruded hole using a punching process requires extreme pressure force.
If extruded holes are too close it can lead to metal deformation.
Certain distance should be maintained between two extruded holes in sheet metal designs.
The following illustration shows the extruded hole geometry.
Therefore the minimum distance between the extruded hole to edge if maintained.
Alternately the hole could be pre pierced in a separate station and then the edges extruded at a second station.
You can imagine the shape as being a body to the punch of any shape and from this protrudes the punch pin of the diameter you want.
For the tapped screw hole this is typically made using a male punch that creates the hole and extrudes the metal.
Tap fix screws for extruded holes in light gauge steel this article provides tap fix hole size recommendations for metals using light gauge punched extruded materials.