Many people in their life have faced the problem when they urgently need to unscrew rusty nuts and bolts. And often it happens that the repair itself is very insignificant, but the fight with the bolt can easily ruin the whole mood. But there are folk methods with which you can quickly and without nerves solve this problem. Let's find out how to unscrew a rusty bolt at home without special tools and tools.
Use the lever
This is the very first thing that comes to mind if you need to turn off rusty or soured fasteners. As a lever, you can use a conventional pipe, which is worn on a key. Previously, on the bolt itself and around it, it is better to walk with a metal brush. To work with the lever, it is better to choose a ring wrench, but a spanner will do. Work should be done carefully. The key can easily be torn and hit on the fingers. Excessive efforts when loosening is not necessary - just one or two powerful short-term jerks are enough. The main task here is to break the bolt, that is, to destroy the oxides, which for a long time formed in the pair "bolt-nut". In addition, if you make excessive efforts, you can easily lick the edges of the head, break the key or the bolt itself. And then precisely without special heads for torn edges can not do.
Chisel
Here is another effective way to unscrew a rusty bolt at home. But do not think that a hateful nut or bolt can be cut down with a chisel. With this tool, you can actually pull out the fasteners from the rust holding it. You need to hit the chisel sharply with a hammer. In this case, it is installed to the edge of the bolt at a slight angle. The tool is directed at an angle to the side opposite to the thread. Then they make a strong and sharp blow with a hammer.
Thus, experienced locksmiths can break even the most complex bolt or nut in a few seconds. Of course, to use this method masterly, you will need some experience, but this method definitely works.
Tapping
Oxides and rust are formed inside the thread during the operation of the joint. A bolt or nut literally grows to a thread. If these oxides are destroyed, then even that should not be unscrewed.
You will need a spacer for the size of the head of the bolt or nut. A hammer is also useful. Using these simple tools, the bolt head is tapped on all sides whenever possible. You can also hit the head several times. If the oxide deposits are not age-old, then this will be enough and the bolt can be unscrewed.
Loosening
Before using any means to unscrew difficult fasteners, the craftsmen traditionally try to unscrew the connection using wrenches and socket heads. Perhaps, when you try to unscrew the nut or bolt, they have already moved a little along the thread, but so slightly that it is invisible to the eye.
You can try to loosen the connection. To do this, with a wrench or socket head, on the contrary, they try to tighten the bolt even stronger, but within reason. Next, try to loosen the bolt. You can hear a characteristic crunch. This means that the oxides are destroyed and you can carefully unscrew the bolt or nut, slowly.
Warming up
Here is another way to unscrew a rusty bolt at home. Its only drawback is that it does not always fit. For example, they can not be used everywhere in a car. But the effectiveness of the method is much higher than the previous ones.
The bottom line is to warm up the soured bolt. When heated, the metal expands - this is a school physics course. So, with expansion, the oxides will collapse and the bolt will come out, as if a new compound. For warming up, you can use everything that is at hand: portable gas cylinders, soldering irons, gas cutter, battery and graphite rod. This method differs from all others in that it is effective for tasks such as unscrewing a rusty bolt in a hard-to-reach place. Where it is not possible to knock, where it is not possible to moisten the fasteners with chemistry, the flame of a mini-burner will easily get there.
The bolt or nut should be heated to a sufficiently high temperature - you can even red hot. Then some locksmiths prefer to cool the heated part with water, while others do not wait until it cools down. In any case, after heating, you can try to unscrew the tight bolt with a ring wrench or socket head. From the first time, the fasteners may not succumb, but from the second or third they will certainly succeed. You can use this method in combination with the above. But not a single connection has survived the heating: everything spins up, the main thing is to heat it hot.
Wd-40
Let's move on to chemical methods of how to unscrew a rusty bolt at home. The first thing that comes to my mind is the very same VD-40 liquid. And let them say that the liquid is expensive, it was better not to come up with it yet. Manufacturers keep the composition secret, but it is known that about half of the âVD-40â is kerosene. It is able to penetrate into any cracks. By the way, instead of "VD" you can use analogues (for example, from the company "Mannol").
To combat oxides and fasteners, it is enough to sprinkle a bolt or nut abundantly. But you should first provide access to the thread. Otherwise, the use of liquid will not lead to anything. Literally after 20 minutes, you can try to unscrew the bolt or nut. The element should get out with a bang and a crunch.
Solvents
Speaking of chemistry, one cannot but say about folk remedies. You can unscrew a rusty bolt using gasoline, kerosene, turpentine, white spirit. The WD-40 spray can is quite expensive, and buying it for the sake of a single harmful bolt is not always wise. Therefore, you can use solvents. All of them have a very large penetrating ability and can easily get inside a rusty thread.
So where to start? The place around the fastener is carefully cleaned with a metal brush, then the fastener is abundantly filled with kerosene, gasoline or other chemicals that are at hand. After 15-20 minutes you can try to turn away.
Vinegar essence
Experienced locksmiths shared their experience on how to unscrew a rusty bolt at home or in a garage. The liquid that the housewives use in the kitchen comes to the rescue. 70% vinegar essence is a real acid, which means it can defeat rust and oxides.
The place is cleaned with a metal brush, then the rags are abundantly wetted in the liquid and the fasteners are covered with this rag. After a while (usually 20 minutes is enough, but maybe more), the bolt will loosen. At first with an interference fit, and then everything is easier.
"Coca Cola"
This is not a joke at all, but one of the ways to unscrew rusty nuts and bolts. Everyone knows that in the composition of the popular drink there is phosphoric acid. It is used for degreasing and to combat corrosion products. Naturally, it will take longer than with essence or "VD-40", but if there is nothing else, then you can try.
Everything is very simple. The surface near the fasteners is plentifully filled with a sweet drink, and then you can only wait. After a few hours, you can try to unscrew.
Brake fluid
But how to unscrew a rusty bolt in a car if the car gets in the way. Brake fluid will help. It is distinguished by its enormous penetrating power and can easily get to where even kerosene does not fall. After a few minutes, you can try to unscrew the connection. As practice shows, this is a very effective folk remedy.