How to remove the screw when it is rusty?

Method 1: Bake the screw with gas welding flame, drop engine oil or sewing machine oil on the screw, let it stand for a while and then unscrew the screw;

Method 2: pour the cola on the rusty screw, let it stand for a few minutes, and unscrew the screw easily;

Method 3: chisel a V-shaped groove on the top of the screw with a hammer and a screwdriver, and then impact along the direction in which the thread is screwed out.

How to remove rusty screws?

Method 1: gas welding flame+engine oil?

The screws are badly rusted. At this time, you can bake the rusty screws with a gas torch first, and then immediately drop oil on the screws. The screw will expand when heated, so that oil can flow into it. In this way, rusty screws can be easily unscrewed. ?

Method 2: Coke?

Pour the coke directly on the rusty screw and let it stand for a while. Coke is rich in carbonic acid, which will react with rust. If there is too much rust, you can pour more coke.

Method 3: Hammer and flat-headed screwdriver?

In addition, you can also use a hammer and a screwdriver to impact vertically from the top of the screw, and then impact along the direction in which the thread is screwed out. This will loosen the screw and make it easy to unscrew. ?

Method 4: welding?

If you accidentally break the screw when removing it, you can weld a flat iron on the screw with electric welding, and then quickly drip oil; After the screw is cooled, gently tap the screw with a small hammer.