What should I do if the screws are rusty and cannot be tightened?

　　What should I do if the screws are rusty and cannot be tightened?

1. Beating:

First, use a wrench to clamp the screw. Remember to use force. At this time, we can use a hammer to quickly hit the handle of the wrench. Of course, when banging hard, don’t forget to wear gloves to prevent injuries to your hands due to vibration. There are also steel wires that tend to appear on rusty screws, and if you are not careful, you may scratch your hands. Of course, after several knocks, the rusted parts will become loose due to knocks, so they can be slowly unscrewed.

2. Fire:

Screws that are relatively rusty can be burned by fire. When burning, be sure to wear gloves and clamp the screws with a vise. Be careful not to get burned by the fire. Of course, after burning for a few minutes, you also need to drip an appropriate amount of cooking oil on the screws to lubricate them, and finally the screws can be easily unscrewed.

3. Coke:

Pour Coke directly onto the surface of the rusty screw, mainly because Coke contains carbonic acid, and the main component of rust is iron oxide. After the two are combined, the rust on the screw can be removed, and the screw can be tightened effortlessly. .

4. Homemade cleaner:

Prepare a small container and pour an appropriate amount of tap water. Then add 2 caps of alcohol, vinegar and detergent, mix well, and pour it on the surface of the screw. It can also react with rust. Let it sit for a few minutes and then take out the wrench. Just twist it, and the screws can be unscrewed quickly without using any brute force.

5. Lubricating oil:

Put a few drops of lubricating oil used for machine maintenance on the surface of the rusty screws and let them sit for a few minutes, which will make them easier to unscrew.