Burner Cap - Black - Right Rear & Left Front WP74007415

First I removes all visible screws. The stove top would not budge. I noticed that the elements had screws holding the top in place. These were difficult to remove and all eight screw broke. I then removed the top. I had to remove the broken screws by drilling them out and re-tapping the threads. This was the single most difficult thing to do and took the most time. Once this was complete, re-installing the top was quite simple.
Haviong directions would have been very helpful.