This part is the replacement grommet for your cooktop or range. It is made of black plastic and is approximately 1 ¼ inches in diameter. This part may also be known as the cooktop burner knob gasket, ...
First I drilled out the screws on the burner as they were fused. I opened the stove top cover to access the underside of the burner. Removed the orifice holder, by disconnecting the gas line with a line Wrench and the electric cord.
The trick is to be careful with the gas line. Also when you go to replace the orifice holder you will notice that the holes are not threaded. The metal is soft and you're supposed to just screw the screws into the holes and let them bite into the metal. Then you reattach the gas on the electric and put the stove top back together.