2015 370z Splash Guards
 

Hey guys i need help , so i bought mine own guards and installing myself since i got a ridiculous quote from the dealership ($280) for front and rears like wtf. Upon trying to drill out the bottom with 3/16 there is already some type of screw in there, some drill bit type. How did u guys get this out without breaking the plastic ? https://ibb.co/f4qvgk As you can see i already stripped it .That is what is under on the instructions under Fig 1 #7

Looks like a rivet, u take a drill with a small bit, and drill it out.

Yea does look like a rivet, and had a 3 point star formation