2001 brake rotors: mysterious extra fasteners

[lo_jack]

I was wheels up on the first rotor about to do new rotors, pads and a bleed.

The runout on the rotors is horrible; I think they are the original rotors.

Per the walkthrough I get to the part where there is a hex or star fastener holding the rotor onto the hub. I pull that and try to get the rotor off. No luck. Upon closer inspection, there appear to be two more fasteners like the hex fastener that hold the rotor to the hub, but they have no tool hole! They are just blank, flat surfaces. There are two of them, exaclty the same diameter of the one that is supposed to be there, exactly the same distance from the hub center as the one that is supposed to be there.

Is this possible? Are there really two drill out only screws in these rotors? If I had pics I would share, but I do not.

One other thing - the brembos I got to replace these do not have extra holes for more fastners, just the one.