2001 Es300 Loose Rotor (what Keeps It Tight?)

[jimgar]

I have after market rotors that were replaced 1 year ago. I was replacing the front brake pads. Left front rotor was tight and sturdy, however when I removed the caliper on the right front the rotor was very loose. I pulled it off by hand after removing the rotor housing (if that's what it';s called). My question is what holds the rotor tight in place is it the lug nuts and the brake pads. I am afraid to put it back together and drive. I expect the lug nuts hold it in place but I wanted a second opinion.

Thanks in advance.

Jim

[SKperformance]

the lug nuts hold them , OEM rotors usually have 2 screws on the hubs to hold them in place tightly as well.