Depends on where and how rusted. WD-40 may help. Putting a screwdriver in the slot and hitting it once or twice with a hammer may break it loose if it is in something that will survive the hit. Heating it with a propane torch will loosen it if that is possible. Sometimes you have to drill it out and put a larger one in it's place. An impact screwdriver can be used. You beat on the end while turning the screw.
well I have.......... so it means you can
Rusting bolts normally indicates that the bolts are brittle. Taking a pair of water pump pliers and squeezing really hard will most of the time break the rusted bolt so you can remove the toilet seat. Otherwise depending on the type of toilet seat installed, you can drill a hole right through exactly where the rusted bolts slot in, so helping you remove the toilet seat.
Absolutely you can use a screw extractor to help you remove a screw that has broken off below the surface and you have no alternative to remove them. Here is a website that walks you through the process. http://www.wikihow.com/Use-a-Screw-Extractor
probally if not to bad rusted with a wire brush if really bad rusted use a wire brush hand grinder wheel that is what helps me in when i have to weld rusty metal
Under the index button there shold be a screw , loosen the screw and take off the handle
While you can't really remove the rust, you can use penetrating oil to help get the screw loose, and you can use sandpaper on it to remove the rust you can get to.
Most of the time it breaks off and you will need to drill it out and replace screew.
Remove set screw. Then tap the rotor with a hammer. The rotor should break free. It has just rusted itself to the axle, due to condensation.
I'm pretty sure you can't screw a NAIL. A screw maybe...
well I have.......... so it means you can
go to your local auto parts store and purchase an Easy Out or Screw Extractor. There are atleast 2 different kinds. I like the threaded ones that drill themselves into the screw as you turn.
Hit it with a hammer
Hacksaw
A cutting torch is one answer.
Put in Hot water
Clockwise to screw in, counterclockwise to remove
remove the 2 plastic screw knobs directly on top of headlight assembly, they will most likely be rusted in so you might have to use vice grips or channel locks to break them loose, after that the assembly will pull straight up and out.