My latest project car came with the screws missing, I don't like having the rotors flop over when I am doing brake work on the calipers so I prefer to have the screws in place. Once I get anti-seize on them they never are a problem to remove , always use that when installing.

 

You can use a lug nut to hold the rotor against the hub during brake work also.

But...yeah, I like to use the screws on cars whose brakes I'm not doing often (street driven cars).

 

As others stated before me, use JIS impact and screwdrivers and you will never strip again. Japanese cars (and motorcycles) use JIS (Japanese Industrial Standard) screw heads, and Phillips drivers (US standard) will strip them but not the other way around. It has to do with the angle and seating of the JIS tip, and it will work perfectly with Phillips screws. Ever wonder why so many S2000 owners strip MAP sensor screws? Because they use the wrong tools, same with the rotor screws. Use JIS on all your crossed screws. I have a set of Vessel JIS screw drivers and use them for everything now, just assembled some office furniture with them...it's been years since I've stripped any type of screw...

 

It's the Fit

 

Just did mine yesterday...I believe it's the first time these screws have ever been removed in the car's lifetime (02 w/ 50k miles). Using the correct bit they came right out without a fuss....I didn't even use an impact driver, I used my milkwaukee 3/8 impact gun and they zipped right out with zero effort. Still had the factory scribe mark going across the screw too.

I put in some new screws with a little dab of anti-seize. Won't have a problem.

 

Agred 100%. There is annother brand of screwdrivers around, HOZAN. They are also desigend for JIS screws. Dont belive wrong Amazon ratings! They fit so perfect-thight into JIS Screws, that the screwdriver stand upright in the screw.
The VESSEL Screwdrivers have better tips and grips.The HOZAN have a wider range of sizes. I have both sets.
Working on Carburetors of japaneses motorcycles is unthinkabale without these screwdrivers. I remember all the and stripped screws when working with Phillips screwdrivers on Japanese equipment.

 

I was surprised to find that my Ryobi Impact Drill bit case included JIS #3 bits that worked really well on my car. As stated above, I replaced my screws with new ones using anti-seize.

 

I also have the Vessel drivers along with a Vessel kit for smaller stuff. The two larger of the Vessel drivers are one way impact drivers. I also included in the picture a Tivoly Technic kit of a variety of specialized drivers. Got it in Paris but have seen it on Amazon. Not so much for major engine work but has come in handy for a lot of other things.