How to remove rust from bolts and nuts - Metals and their processing

How to remove rust from bolts

Metal tools are susceptible to corrosion, especially when they are stored in areas with high humidity - garages, basements and others. This spoils the appearance of the products and makes them difficult to use. You can clean rust from a tool yourself using various methods.

How and with what to properly clean metal tools

For large items, a mechanical method is used, for example, sandpaper, a wire brush, a scraper or sandblasting.

This processing method is not suitable for small parts. In these cases, it is recommended to use store-bought cleaning products and folk recipes. Special compounds allow you to remove plaque without damaging the surface.

Before you clean rust on metal, you should prepare your tools for processing. If they are severely damaged by corrosion, you will need a steel wool brush for the procedure. For deep damage over a large area, it is recommended to use an electric grinder.

Metal cleaning devices require the use of physical force. In this case, care must be taken not to damage the surface structure. At the end of the work, you need to sand the tools with sandpaper to remove any traces of scratches.

Rust solvents for metal products

Various types of chemicals are used to clean iron objects. Rust solvents are made from acid, zinc oxide or plant components. To get your tools in order, you can try Syntilor Ruggine, Sonax, Liqui, Wurth, etc.

Such products are harmful to the skin, so work should be carried out with protective gloves.

When using chemical compounds, you should adhere to safety precautions:

Strictly follow the manufacturer's instructions for using the substance.
Wait the right time for the product to react with the corrosion, and then clean the product.
Make sure that the drug does not come into contact with the skin and mucous membranes.
Use solvents only for small items.

Products based on tannins and additives are considered safe, since they do not contain toxic compounds.

Chemical zinc solvents are widely used in the automotive industry. They are also used to prevent corrosion.

Rust converters for tools

There are commercially available products that allow you to stop the oxidation process - these are rust converters, which are available in the form of an aerosol. They are usually used as a primer for painting. Such compositions are made on the basis of orthophosphoric acid. The most common: Fenom, Permatex, ABRO, ASTROhim Antiruster .

These preparations are recommended for use when you plan to coat metal products with paint. They do not remove rust, but only stop the corrosion process.

The advantage of converters is that after they are applied, a special film appears on the surface, protecting against further spread of plaque.

Household chemicals against corrosion

The easiest way to quickly clean rust from metal is with household chemicals. Manufacturers present relatively safe products at an affordable price. Popular brands include Comet, Pemoklux, Domestos, Cillit , etc.

Manufacturers indicate the composition of the products and recommendations for their use on the packaging. Preparations containing acid should be used with caution to avoid damaging the surface.

The scheme for working with household anti-rust chemicals is as follows:

A tool or other metal product is cleaned mechanically.
The surface is wiped with solvent.
Household chemicals are applied to the product.
The parts are re-processed with sandpaper.

Zinc chloride helps get rid of signs of corrosion . The substance is mixed with potassium hydrogen tartrate in a ratio of 10:1. Screws, wrenches, and bolts are placed in the prepared solution. Items are left for 2-3 hours. Using tongs, the instruments are removed from the solution. If the need arises, they are cleaned with a stiff brush, then thoroughly washed under running water and dried well.

There is a simple way to remove rust from bolts using hydrochloric or sulfuric acid . For this, a 5% solution is prepared: 0.5 g of hexamine is added to 1 liter of liquid. The metal surface is treated with the resulting mixture.

With deeply ingrained corrosion, the use of household chemicals alone may be ineffective and you will need to combine different methods.

Folk remedies for cleaning rust from tools

You can remove rust from metal keys with simple homemade solutions. The following substances are suitable for removing signs of corrosion:

Table vinegar . Water and acid are mixed in a container in a 1:1 ratio. The instrument is immersed in the liquid for several hours, then the objects are taken out and thoroughly wiped with a dry cloth or rag. Remains of rust are removed with a hard sponge.
Lemon juice . An effective product that helps dissolve rust that has formed on bolts or other small metal products. The liquid is diluted in equal proportions with water. Instruments are soaked in the mixture for 3-4 hours. If there is no juice, it can be replaced with citric acid.
Soda . A small amount of water is added to the powder. The resulting slurry is applied to the surface affected by rust and rubbed in with a metal brush. Then the instruments are washed with running water and dried.
Coca Cola . Helps easily get rid of rust that appears on tools. Objects damaged by corrosion are placed in the liquid and left for several hours, then washed well.

If after using any of the traditional methods there are traces of rust, they must be removed with a stiff brush. Upon completion of treatment with liquid compounds, the instruments must be wiped dry.

Preventing rust

High humidity, temperature changes, and aggressive environmental influences always lead to the formation of corrosion on metal products. For prevention, you must adhere to several rules:

The instrument should be wiped down after each use. Shovels, rakes and other gardening tools should be cleaned with solvent or kerosene to completely remove residues and plant juices.
Regularly treat metal objects with special compounds that prevent corrosion.
Periodically carefully inspect all instruments for damage. Replace damaged parts immediately. At the first sign of rusting, take action immediately.

Source: https://vi-pole.ru/chem-ubrat-rzhavchinu-s-boltov.html

How to remove rust from tools, bolts and nuts with your own hands - Old-new interior

Is it possible to unscrew a problematic bolt or rusty nut without resorting to emergency measures? Car enthusiasts know this issue best. They are the ones who most often encounter similar situations and can give practical advice by sharing successful experiences and recipes from their own arsenal of remedies. Let's consider the available options.

This is the first thing you can do if you need to unscrew a rusty nut or capricious bolt. A steel pipe placed on a key is used as a lever device.

You should first go over the fasteners and around them thoroughly with a brush with metal bristles. It is better to use a spanner wrench, but in extreme cases an open-end wrench will do. Everything needs to be done carefully. The main thing is not to overdo it.

Excessive force is unacceptable, as the result may be a torn bolt head, licked nut ribs or a broken key.

Chisel

Here we are not talking about simply cutting off a rusty nut or the head of a tight bolt. With a chisel and one sharp blow of a hammer, you can tear stubborn fasteners out of the tenacious embrace of rust.

To do this, you need to point the chisel closer to the edge of the bolt or nut at an angle in the direction opposite to the thread, and then strike sharply and firmly with a hammer.

Using this technology, experienced craftsmen masterfully remove any, sometimes even the most hopeless, nut or bolt with one blow. Of course, you still need to grow to such professionalism, but the method works.

Tapping

This operation, which does not require special skills and deep knowledge of theoretical mechanics, can be either a solution to the problem or a preparatory step to solving the problem of unscrewing a rusty bolt or nut. In any case, two or three sharp blows with a hammer on the fastener through a non-ferrous metal attachment will not do any harm. This action will help destroy oxide layers and make the task much easier.

Loosening

Perhaps, during the process of unscrewing, a rusty bolt or an unruly nut has already moved along the thread by a couple of microns, but this moment, of course, cannot be noticed. Therefore, you need to try to tighten the fasteners even more and try to loosen them again. This technique allows you to destroy oxide formations and, gradually loosening, unscrew the threaded connection.

Warming up

You should try to achieve the desired result by heating the capricious fasteners. Everything will do here - a gas torch, a soldering iron, a pocket lighter.

You can even use rags soaked in gasoline or other flammable liquid, but this should be done carefully, following safety rules. Without waiting for the old nut or rusty bolt head to cool down, you need to try to unscrew them.

The best choice for these purposes is not an open-end wrench, but a box or socket wrench. If you don’t succeed the first time, you can try combining techniques - tapping well, loosening, using a lever.

WD-40

“Spray it with Vedashka” - this is how any garage will respond to a complaint about a problematic bolt or capricious nut. And they will be absolutely right. A better remedy has not yet been invented. Its exact recipe remains a mystery, but it is known for certain that the liquid consists of 50% white spirit.

To unscrew soured fasteners, you first need to open access to the threads by treating the area around the bolt or nut with a wire brush, and then generously fill the fasteners with “magic” liquid, spraying it from a spray can. After 15-20 minutes you can try to unscrew it.

This remedy is really effective and almost always helps.

Gasoline, kerosene, turpentine and others

Unfortunately, WD-40 is not always on hand, and buying a can because of one rusty nut or bolt is not the best solution in terms of savings. Therefore, it is worth trying some petroleum products - from white spirit to turpentine.

All of them have high penetrating power and are solvents. This property will help in the event of a threaded connection becoming clogged with dirt of various natures. The procedure is standard - the area around the fastener is cleaned and filled with kerosene, diesel fuel, or gasoline.

After 10-15 minutes, when the liquid penetrates deep into the thread, you can try to twist the bolt or nut.

Vinegar

A rusty bolt or nut that does not want to be unscrewed can be brought back to obedience by table vinegar. To do this, wet the area of the threaded connection with vinegar and wait 15 to 30 minutes.

If time is not limited, then you can simply cover the fasteners with a rag soaked in vinegar. In a couple of hours, vinegar will thoroughly undermine the rust and weaken the adhesion of the mating surfaces in the fasteners.

After such a “compress”, the rusty bolt or nut will at first reluctantly, and then become easier and easier to unscrew.

Coca-Cola

This is not a joke for people far from technology, and not news for specialists.

Coca-cola contains orthophosphoric acid, which is effectively used in production for degreasing, soldering, and cleaning metal surfaces from rust. The procedure is still the same. The fasteners are cleaned and watered with fashionable “fizzy water”.

In the meantime, while the problematic bolt or nut is soaking, there is time to think about what kind of crap some of us drink with pleasure, considering it almost an elixir of health.

Rust converter

Such products are made on the basis of acids that destroy iron oxide.

To use them effectively, it is better to moisten a piece of rag in the converter, cover the bolt or nut being unscrewed with it and leave it for several hours.

Before doing this, it is advisable to degrease the fasteners well with gasoline, kerosene or some other solvent. The converter “breaks” the rust well and the threaded connection unscrews.

Brake fluid

Fresh or already used - it doesn’t matter, the brake fluid helps a lot.

It has a high penetrating and lubricating ability, and therefore, if necessary, you can safely use it to unscrew a rusty nut or a tight, unruly bolt.

It’s better, of course, to moisten a piece of rag with brake fluid, cover the soured fasteners and wait an hour or two. During this time, the liquid will seep into the thread and the connection will be easier to unscrew.

Alcohol solution of iodine

We are talking about the idea of an ordinary pharmaceutical alcohol solution of iodine. In this tandem, alcohol, also known as ethylene, and iodine, as an element of the periodic table, equally distribute among themselves the functions of freeing fasteners that have become soured in rust.

Alcohol has a high penetrating ability, and iodine interacts with iron oxides and other iron compounds formed upon contact with the external environment. Thus, these two substances weaken the rust, making it easier to free the rusted bolt or nut.

To avoid getting your hands dirty and for convenience, it is better to apply iodine to the connection using a syringe.

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Source: https://oldnewinterior.ru/kak-udalit-rzhavchinu-s-instrumentov-boltov-i-gaek-svoimi-rukami.html

How to unscrew a rusty bolt or nut

This is the first thing you can do if you need to unscrew a rusty nut or capricious bolt. A steel pipe placed on a key is used as a lever device.

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Excessive force is unacceptable, as the result may be a torn bolt head, licked nut ribs or a broken key.

How to remove rust from tools, bolts and nuts with your own hands

Useful tips that will be useful for life.

Many men, when repairing a car, or simply in everyday life, have encountered “stuck” bolts and nuts. Sometimes you have to struggle with rusty fasteners for hours, and the technician often runs the risk of breaking everything and also getting a bunch of bruises. How to avoid this and learn how to easily and simply unscrew old bolts, see our review.

1. Patience

The secret to success is to take your time. | popularmechanics.com.

The first and most important thing you need to have in such a situation is endurance and patience.

If a stuck bolt does not give in, you should not use extra force to immediately move it. This way you can break off the head and delay the repair, as they say, with your own hands.

There are many effective means that will help unscrew problematic fasteners. Read more about them in the following paragraphs of our review.

2. Remove rust

Use a wire brush to remove paint and rust as thoroughly as possible. | popularmechanics.com.

To make it easier to unscrew a bolt or nut, you need to remove all dirt, rust and paint. A stiff wire brush works best for this. Particular care must be taken to remove rust from threads.

3. Tool selection

Not every tool is suitable for dealing with problematic fasteners. | popularmechanics.com.

To unscrew a stuck bolt or nut, you need a spanner or socket, preferably with 6 edges. A regular open-end wrench is likely to slip, smear the edges, and can cause injury. It is undesirable to use 12- and 18-sided tools, as there is a high probability of slipping.

If the fasteners are already licked off, you should get a special head, which is called “for torn edges” or an extractor.

Socket set for removing damaged nuts and bolt heads. | yaplakal.com.

4. Direction of rotation

Typically the bolts are unscrewed counterclockwise. | popularmechanics.com.

Most people are accustomed to the fact that all screws are tightened clockwise and unscrewed counterclockwise. But in cars, fasteners with a reverse thread direction are often used, for example, left-hand wheel studs. Those who don’t know this will probably “play around” for a long time.

5. Lubricate rusty threads

The famous product WD-40 and its analogues. | popularmechanics.com.

On nuts and bolts that do not come loose easily, you can use one of many lubricants. Penetrating oil like WD-40 is very popular among car enthusiasts. By the way, this is a very useful drug in solving other everyday problems.

Lubricate the seized parts. | popularmechanics.com.

Apply penetrating oil generously to the mating surfaces of the parts and leave for some time. If the bolt or nut is very rusty, you can leave the chemical to work overnight.

You can also moisten rusted parts with kerosene, solvent, plain water or Coca-Cola. These remedies also help a little.

6. We are looking for a longer lever

The longer the key, the less effort you need to apply to it. | kakprosto.ru.

The larger the handle of the tool used to remove a stuck bolt, the more likely it is that it will give in. True, if the parts hold tightly, then we move on to the next step.

7. Warm up the part

A gas burner does not produce a very high temperature, and therefore will be the best choice for a beginner. | .com.

If you cannot unscrew the fastener even with a head with a long lever, then the connection should be warmed up. Professionals use an acetylene cutter for this. But if you don’t have it at hand, a mini gas burner, which you can buy on the market, is also suitable.

We heat the nut only on one side. | popularmechanics.com.

By unscrewing the pin from the aluminum cylinder block, we heat the block itself around the threads. At the same time, periodically tap the pin in a circle. And if you need to unscrew the nut, then heat it on one side and also tap it with a hammer on all sides.

A professional impact wrench will help where other methods are useless. | club.dns-shop.ru.

If even heating does not help, then the rusted fasteners most likely cannot be saved. Pneumatic or electric impact tools are very effective, but impact wrenches often break off the heads of "difficult" bolts.

Unscrewing problematic nuts also often ends with their mechanical removal. To do this, cut the nut into pieces with a saw or grinder; you can also drill with a drill in several places.

Sometimes two notches on opposite edges are enough, and the nut begins to rotate.

And the easiest way to quickly split an old nut is to use a special device known as a nut cutter or nut splitter.

Source: https://vdelaysam.ru/kak-udalit-rzhavchinu-s-instrumentov-boltov-i-gaek-svoimi-rukami.html

How to unscrew a rusty bolt at home: simple methods, the use of special tools and expert advice

Many people in their lives have been faced with the task of urgently needing to unscrew rusty nuts and bolts. And it often happens that the repair itself is very minor, but struggling with a 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 or tools.

We use the lever

This is the very first thing that comes to mind if you need to unscrew rusty or soured fasteners. As a lever, you can use an ordinary pipe, which is put on a key. It is better to first go over the bolt itself and around it with a wire brush. To work with a lever, it is better to choose a ring wrench, but an open-end wrench will also do. You should work carefully. The key can easily break off and hit your fingers.

There is no need to apply excessive force when unscrewing - one or two powerful short-term jerks are enough. The main task here is to break the bolt, that is, to destroy the oxides that have formed in the bolt-nut pair over a long time. In addition, if you apply excessive force, you can easily lick the edges of the head, break the key or the bolt itself. And then you definitely can’t do without special heads for torn edges.

Here is another effective way to unscrew a rusty bolt at home. But don’t think that you can cut off a hated nut or bolt with a chisel. With this tool you can actually pull the fastener out of the rust that holds 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 in the direction opposite to the thread. Next, make a strong and sharp blow with a hammer.

Thus, experienced mechanics can tear off even the most complex bolt or nut in a few seconds. Of course, to use this method masterfully, you will need some experience, but this method definitely works.

Warming up

Here's another way to unscrew a rusty bolt at home. Its only drawback is that it doesn't always fit. For example, it cannot be used everywhere in a car. But the effectiveness of the method is much higher than the previous ones.

The point is to warm up the soured bolt. When heated, metal expands - this is a school physics course. This means that during expansion, the oxides will be destroyed and the bolt will come out as if the connection was new.

To heat up, you can use everything you have at hand: portable gas cylinders, soldering irons, a gas cutter, a battery and a graphite rod. What distinguishes this method from all others is 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 wet the fasteners with chemicals, the flame of a mini-burner can easily reach there.

The bolt or nut should be heated to a fairly high temperature - perhaps even red hot. Then some mechanics 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 difficult bolt with a spanner wrench or a socket head. The fastener may not give in the first time, but the second or third time it will definitely work. You can use this method in combination with those already described above.

But not a single connection has withstood the heat: everything is unwinding, the main thing is to heat it hotter.

Solvents

Speaking about chemistry, one cannot fail to mention folk remedies. You can unscrew a rusty bolt using gasoline, kerosene, turpentine, or white spirit. A can of WD-40 is quite expensive, and purchasing it just for one harmful bolt is not always wise. Therefore, you can use solvents. All of them have very high penetrating power and can easily get inside rusty threads.

So where to start? The area around the fastener is thoroughly cleaned with a wire brush, then the fastener is generously filled with kerosene, gasoline or other chemicals that are at hand. After 15-20 minutes you can try to turn it away.

Vinegar essence

Experienced locksmiths shared their experience on how to unscrew a rusty bolt at home or in the garage. The liquid that 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 area is cleaned with a metal brush, then the rag is generously moistened with liquid and the fasteners are covered with this rag. After some time (usually 20 minutes is enough, but it can be more), the bolt will unscrew. At first with tension, and then everything becomes easier.

"Coca Cola"

This is not a joke at all, but one of the ways to unscrew rusty nuts and bolts. Everyone knows that the popular drink contains phosphoric acid. It is used for degreasing and to combat corrosion products. Naturally, this will take more time than with essence or WD-40, but if there is nothing else, you can try.

Everything is very simple. The surface near the fastener is generously filled with a sweet drink, and then all you can do is wait. After a few hours you can try to unscrew it.

How to unscrew a rusty bolt at home

Unscrewing a rusty bolt or nut can be quite nerve-wracking.

A person who has never faced the problem of how to unscrew a rusty, soured bolt or a tightly stuck nut cannot even convey how much time, effort and nerves this sometimes seemingly futile task can take. Sometimes you just give up, and the only way out seems to be the “grinder”, which allows you to resolve the issue, albeit radically, but quickly. But often even she is not able to help and threatens only to aggravate the situation, creating problems of a different kind.

So is it possible to unscrew a problematic bolt or rusty nut without resorting to emergency measures? Car enthusiasts know this issue best. They are the ones who most often encounter similar situations and can give practical advice by sharing successful experiences and recipes from their own arsenal of remedies. Let's look at the available options.

Lever arm

This is the first thing you can do if you need to unscrew a rusty nut or capricious bolt.

A steel pipe placed on a key is used as a lever device. You should first go over the fasteners and around them thoroughly with a brush with metal bristles. It is better to use a spanner wrench, but in extreme cases an open-end wrench will do. Everything needs to be done carefully. The main thing is not to overdo it. Excessive force is unacceptable, as the result may be a torn bolt head, licked nut ribs or a broken key.

Tip 1: How to unscrew a rusty bolt

A quick way to remove rust from any thread

Often, the problem arises in ridding any metal of the hated rust. There are quite a lot of ways to remove rust (divided into types):

Chemical (acids, other substances)
Manual (mechanical).

Manual elimination

The most common example of cleaning rust is rubbing with a brush with stiff bristles. The metal is “treated” in the same way before being coated with paint. Also, many people who are faced with this problem clean rust from metal using gasoline, kerosene and car cleaner.

Removing metal using “chemistry”

Chemical methods are the most effective compared to manual ones. There are also many more chemical methods than mechanical ones.

Basic ways to get rid of rust.

Sulfuric acid and inhibitor (small parts should be immersed in the solution, large parts should be brushed)
Sulfuric acid + zinc (we make a protective side and mix our elements in it, after which your metal will be as good as new).
Fish oil (it is necessary to apply fish oil to the rust and leave it for a while, thanks to the properties of fish oil, the rust will disappear, after which a protective film will remain, protecting the metal from the recurrence of rust.
Potatoes + household soap/salt (cut the potatoes and rub the cut side with salt and soap, then rub the rusty area with these potatoes).
Vinegar and lemon juice (mix them and apply to the rust, after a couple of hours “rub” with a steel sponge, then rinse the metal under water.)
Baking soda (It is necessary to mix baking soda with water and apply the solution to the “outdated” areas, leave the material for an hour, rub the area with a sponge, if unsuccessful, perform all the previous steps again).
Flour and vinegar (Apply the solution to the metal, wait an hour, then rinse the metal and wait to dry).
Lime + salt (In fact, any citrus fruit can suit you. To remove rust, you need to: sprinkle salt on all places affected by rust, and pour liberally with lime juice (citrus fruit). After a few hours, clean the rust with a sponge or the peel of the lime (citrus fruit) itself ).
Coca-Cola (The most popular method for cleaning metal from rust is to “immerse” the metal in a drink, after which all the rust will settle to the bottom of the surface).
Glycerin + tooth powder and water (Such a solution will remove rust not only from metal, but also from fabric.)

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Having considered the main methods of cleaning metal from rust, you can make sure that this task will not be difficult and everyone, with the right choice of method and its implementation, can easily rid their item of rust.

Source: https://folksland.net/kak-sdelat/byistryiy-sposob-ochistit-lyubuyu-rezbu-ot-rzhavchinyi.html

How to dissolve rust on bolts

The widespread tightening of belts forces one to remember or master methods of self-repairing a car. We will learn how to deal with and unscrew stuck bolts and nuts at home from this article.

In order to unscrew a broken pin or unscrew a rusted nut or bolt, sometimes you have to work hard. Let's look at the main methods of dealing with intractable fasteners. It is useful to tap a stuck nut with a hammer, placing a heavy metal support under the side opposite to the blow. Thus, it is often possible to move it left to right and move the stuck nut out of place.

A good result is obtained by soaking rusty threads using an easily penetrating lubricant. This can be unisma, wd40, kerosene and in some cases even vinegar. You just need to be patient and wait until the liquid penetrates into the joint. If possible, leave the capricious fasteners overnight.

To remove rust and dirt, it is a good idea to clean the fasteners with a wire brush.

If the edges of the bolt are torn off and rounded, you can try to move the fastener from its place by hitting a chisel with a hammer. We set the chisel tangentially and carefully hit it, thus unscrewing the bolt or nut. You can use a sharp chisel to cut the nut and this is also an option. However, for such purposes there is a more convenient device. Using ring clamps with a sharpened wedge, easily accessible nuts are simply cut.

An effective way to loosen fasteners is to preheat them until red hot. The easiest way to do this is with a gas canister supplemented with a special nozzle. Such a miniature analogue can always come in handy on the farm. For example, it is not difficult for them to dry the flooded spark plugs of a car.

If your stud or bolt has broken off and is sticking out from the outside, at least a small piece can be tried to weld a nut of the appropriate size to it. Now you will have something to grab onto. In addition, during the welding process, additional heating will occur, which in turn will weaken the grip of the stuck joint. Well, if the fragment is inside, then it will have to be drilled out.

In this case, it is important to accurately mark the center of the installation site for the first drill with a small diameter. Then you need to sequentially go through the fragment with enlarged drills until a thin wall remains. The rest of the fastener is usually easily turned out using the so-called extractor or a faceted tool driven inside, for example the same screwdriver. Of course, drilling is a troublesome task, but the result is important here.

After all, you won’t replace the body of an expensive unit because of one broken pin.

Well, now we’ve learned how to unscrew rusty fasteners. Surely everyone has encountered this problem.

Anyone who repairs their car on their own often faces a problem: how to loosen a rusty bolt or nut . Metal oxide increases the size of the nut, making it almost impossible to unscrew it. And you need to unscrew it carefully so as not to damage the thread, part or mechanism.

Oxidized and rusted connections are a constant headache for car enthusiasts, especially if the car has a long enough lifespan. What are the possible solutions?

You can find various tips on the forums:

Use a hammer or chisel.
Warm up the part. (Parts expand when heated and the gap sometimes makes it possible to unscrew the threaded connection. However, this method is only applicable when there are no rubber seals.)
Do the opposite - tighten the nut even tighter.

How to unscrew a rusty nut: 3 effective ways

(This will allow the rust layer to break down.)

Use welding and weld the key to the nut.

The last resort is to use an angle grinder.

What's the result? Wasted nerves, effort, time and a high risk of damaging the threaded connection and part.

The civilized solution is penetrating lubricant.

Let's look at a specific example of how to unscrew a rusty bolt at home on the rear suspension arm.

Before listening to advice on forums and using force, use penetrating lubricant Liquid Key “PITON” .

This is a special product for rusty bolts in an aerosol package. A powerful jet penetrates into the most inaccessible places, dissolves rust and scale, and displaces moisture. Liquid Key lubricant forms a protective film that prevents the formation of rust in the future.

How and with what to lubricate a rusty bolt in order to unscrew it?

1. Stir the contents of the container for about 2 minutes. From a distance of 20 cm, apply Liquid Key aerosol to the area around the connection.

A special nozzle allows you to penetrate hard-to-reach places. We wait for 3 minutes for the product to penetrate deep into the connection.

2. Unscrew the nut. If the first attempt fails to unscrew, apply PITON lubricant again.

3. Easily unscrew the connection without even exerting effort.

PITON Liquid Key lubricant did not disappoint!

Penetrating lubricant with rust converter “PITON” is a civilized way to solve problems when repairing a car and in everyday life.

The choice is yours: listen to complex advice or buy Liquid Key lubricant to deal with rusty components simply and without damage.

Each of us, at least those who have been involved in car repairs, various metal structures with bolts, etc.

How to unscrew a rusty bolt or nut

I was faced with the problem of rusted bolts. For motorists, this problem is more familiar, since there are a lot of threaded connections in the car that are operated under harsh environmental conditions, when the bolt and nut are constantly exposed to moisture.

Moisture falling on the surface of bolts and nuts under the influence of an oxygen environment oxidizes the iron and the nut material at the thread begins to fuse with the bolt material. During the process of metal oxidation, the volume of oxides increases significantly compared to the volume of the original metal. As a result, the connection between the bolt and the nut becomes jammed.

The more time passes, the more the connection rusts and the stronger the bond between the bolt and nut. Taking into account the different designs of bolted connections, it often becomes necessary to unscrew a rusted bolt and not cut it off, for example, with a grinder.

And we want to talk about how to unscrew a rusty bolt in this article. In our article, we tried to describe all the main methods of unscrewing corroded bolts.

Methods for unscrewing rusted bolts

So, having tried to unscrew the nut, you realized that it does not unscrew even with the application of too much force. Firstly, do not panic and try to unscrew the nut using force. This risks causing you to simply tear off the head of the bolt or nut. Alternatively, you can ruin the wrench, especially if you try to unscrew a rusty threaded connection using a classic open-end wrench.

Source: https://master-kleit.ru/origami/chem-rastvorit-rzhavchinu-na-boltah/

How to unscrew a rusty nut?

03.03.201703.03.2017

Hi all! In today's article I want to talk about how to unscrew a rusty nut. And let’s discard the philosophy that the knot should not have been launched to such a state, it should have been processed before tightening, etc., etc. now it doesn’t matter anymore, it will be a lesson for the future, and now we’ll talk about the means and methods of unscrewing the ill-fated nut.

General recommendations on how to unscrew a rusty nut

It is better to avoid open-end wrenches if possible, and if there is no other option, you need to install the wrench correctly. The key should be placed on the lapel like this (it’s just that this edge of the key is much stronger and the likelihood of the key bending and rolling up the edges is lower):

If you use a spanner or socket, use a hexagon. The fact is that its strength is higher and the probability of rolling the head is less.

If the nut does not give in immediately, do not try to unscrew it again! You will only roll up the edges, ruin the keys and make the situation worse.

Sometimes it is advisable to unscrew it by first starting to tighten the nut on the contrary, since the edges for tightening are usually more intact and the load in the thread on the turn is somewhat lower, but if this does not help, you cannot do without soaking.

Modern classics - soak with WD

Everyone knows about the miracle product WD 40, that with its help it is very easy to unscrew soured threads, but recently the price has not been pleasing.

Using WD 40 is simple - take a metal brush, remove as much dirt and rust as possible, which prevents us from unscrewing the nut, and pour WD on the soured nut, wait a little and try to unscrew it, if it does not help, repeat the procedure.

The composition of WD 40 dissolves rust and at the same time lubricates the surface and reduces friction. There is nothing secret about the composition of WD 40, but the composition is a patented and registered trademark, this situation could not last long and now there are a lot of budget analogues of WD 40 on sale, for example RW 40 or FK 80.

The first old-fashioned method is to soak it in brake fluid.

The method is no different from the previous one except for the means. Instead of WD40, regular DOT3 or DOT4 brake fluid is used. The brake fluid differs from WD40 in that it has slightly worse permeability and is more dangerous for paint.

Brake fluid is a very good substitute for kerosene or white spirit mixed with engine oil.

The second old-fashioned method - soak with acids

The best results are obtained with orthophosphoric acid, and that same Coca-Cola is a very weakly concentrated orthophosphoric acid!

Once, the author of this article, during the years of devastation, was able to exchange a barrel of orthophosphoric acid for a bottle in a disbanded military unit! It was taken “in reserve” and stood there uselessly for many years, until one fine day it was tested as a means for cleaning a clogged sink! The result is that the pipe hissed and the blockage went away, but what a surprise it was when the rusty cast iron pipe sparkled with a metallic sheen! Of course, you can’t buy concentrated phosphoric acid in the store, so we’ll make do with what we have.

All these rust converters like “zinc”, etc. This is orthophosphoric acid, you can spill them on soured threads.

By the way, any concentrated acid, citric, orthophosphoric, acetic and even 70% essence dissolves rust. So it’s quite possible to drop vinegar essence or a solution of citric acid onto a rusty nut and this will help tear it off.

The method of soaking with acid is very simple - drop it onto the thread (several times) and wait until the acid eats away the rust, then unscrew it as usual.

The third old-fashioned method - heat it up

The method is based on thermal expansion. If you use a gas torch as in the picture to heat the nut and quickly (before the bolt warms up) try to twist it, then the probability of successful unscrewing greatly increases. And the heating and cooling itself often loosens the thread and the nut is turned with less torque.

Latest methods - heavy artillery

Tapping.

The idea of the method is as follows: a blow to the nut (or bolt), due to the nature of the load, can weaken the thread. The nuts are usually tapped in a circle, and the head of the bolt is struck along the axis. The method of action is this: knock, twist

Chiseling.

The shape of the chisel allows you to “chop” metal. The principle is as follows - we point the chisel in the direction of the screw on the edge of the nut and, with light blows of a heavy hammer, unscrew the nut! Due to the impact nature of the load, the chisel unscrews everything! If nothing happens when hitting in the direction of unscrewing, put the chisel on the side edge of the nut and cut it as shown in the video below, after the nut is cut, unscrew it:

If this method also did not help, or if you do not want to waste time since the mounting bolt is not valuable, we take the most universal key:

The grinder will unscrew any nut

That's all for me today, smooth roads, honest traffic cops and unscrewing screws.

Source: https://life-with-cars.ru/remont-v-garazhe/prochee/kak-otkrutit-rzhavuyu-gajku/

How to unscrew a rusty nut - expert advice:

A nut that is rusty and therefore does not want to be unscrewed is a problem that is not uncommon for motorists, mechanics, plumbers, and cyclists. The part is stuck in place as if tightly. Sometimes it takes too much effort and time to stir her up. We will introduce you to several methods that will tell you how to unscrew a rusty nut quickly and with a minimum of effort.

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Why is a rusty nut difficult to unscrew?

As a result of the interaction of metal with oxygen in a humid environment, its characteristic corrosion, rust, appears on the material. During its formation, there is a multiple increase in the volume of the oxidation product (the same rust). The nut “swollen” in this way almost tightly merges with the bolt. With a little miscalculation of strength, you can easily break the bolt while trying to break this union.

But rust is far from the only reason why the nut does not unscrew:

Pollution. If dirt, dust, or small metal shavings are stuck on the surface of the thread, then this becomes an obstacle to unscrewing the nut and jamming it in one place.
Strong puff. A tightly tightened nut is also the cause of a hopeless situation. Strongly tightened metal surfaces of two parts, a bolt and a nut, stick to the adjacent one, which makes it very difficult to unscrew the element.
Poor quality tool. The problem may be the same wrench, the edges of which are ground off, deformed or otherwise damaged.

And we continue to figure out how to unscrew a rusty nut at home.

Selecting the right tool

To successfully unscrew a rusty nut, you first need to collect the tools that will help you in this matter:

Socket wrench.
Socket wrench.
Heads with a collar.
Mechanical impact wrench.

Do not try to move a tightly jammed nut using force! Such an impact will only lead to thread breakage, cutting off the faceted part, and often even to tool breakage. First of all, you need to help the matter with the help of a hex wrench. An open-end wrench should not be used.

About safety precautions

Before unscrewing a rusty nut, read these important safety points:

Do not use a tool that is damaged in any way.
The nut is always unscrewed counterclockwise.
The tool must be securely fixed to the part.
Use special household gloves to avoid injury.

So, if a nut is rusty, how do you unscrew it? We offer you several effective methods.

Method No. 1: dissolving rust

How to unscrew a rusty nut? We will not suffer with the tool, wasting our strength in vain. Let's go in search of a substance that will help dissolve rust and reduce friction. Of the most famous ones that have proven themselves well:

Special product WD-40.
Kerosene.
Brake fluid.
Petrol.
Carburetor cleaner.
Alcohol.
Table vinegar.
Iodine.
“Coca-Cola” and other drinks containing inorganic phosphoric acid.

We are sure that at least one of the above is at your fingertips. Next, the algorithm of your actions is simple:

Wet the nut well with the product. Wait about half an hour.
After this, try to carefully unscrew the part with a tool. If it doesn’t work out, apply the substance again and wait.
The product will work better if you soak a rag or napkin in it and wrap it around the nut.
You can then speed up the unscrewing by lightly tapping the part with a hammer.
Another effective way is to try to twist the nut with a strong and sharp jerk after exposure to the solution.
For a small nut, the “rocking” method will help - back and forth.

Method number 2: heating

When a nut is rusty, what can you do to unscrew it if the previous method is ineffective? Try to heat the part - due to the high temperature, the metal will begin to expand, thereby destroying the layers of rust. The threaded connection will, in turn, lose its strength.

What can be used as a heater:

Gas burner.
A lighter.
Construction hairdryer.
Blowtorch.

In extreme cases, regular boiling water will help you. Be careful not to use heat in close proximity to wood or painted surfaces.

The instructions for your actions are as follows:

Heat the nut very hot - preferably red hot.
The next step is to try to unscrew it with a key.
If the nut or bolt thread is damaged, it is necessary to weld the end head to the nut, and then heat up the entire structure. Try unscrewing it with a wrench.

Method number 3: breaking the nut

Sometimes the question “How to unscrew a rusty nut?” There is only one answer left - to destroy it. This will help you in this matter:

Chisel.
Bulgarian.
Hacksaw for metal.
Electric drill.

And here is the algorithm of actions:

Using a chisel and hammer, prepare grooves along the edges of the nut. The further you drive the chisel, the more the diameter of the part increases. The result of this will be the destruction of the connection held on the thread. You can achieve a similar effect by drilling such holes with an electric drill. This case is useful if you have enough room to access the nut.
Another way is to use a grinder or a hacksaw for metal. You need to carefully saw the part along the axis of the bolt connected to it.

Method number 4: twisting

The logic is simple: if the nut cannot be unscrewed in the opposite direction, then maybe try moving it along the thread in a different direction? As soon as the part gives in to your efforts, you need to try to slowly but surely twist it in the required direction.

Method number 5: tapping the nut

How to unscrew a rusty nut on a faucet? Any plumber will advise you to tap it.

For these purposes, the ideal tool is a small 100-gram hammer:

Apply light blows alternately to each of the faces. Moving in a circle, go through this path several times.
During your actions, microcracks will form in the rusted metal, which will lead to both deformation and destruction of the corrosion layer.

Under no circumstances try to hit the jammed nut harder! This will not only not speed up the process, but will also lead to deformation of the edges of the element, bending of the bolt, or even breakage of the part that holds this structure together.

Method number 6: wax cup

The nut is rusty - how to unscrew it? Another way: from plasticine or wax, mold a shape that resembles a mini-cup in outline. In this case, its height sides should be several millimeters higher than the edges of the nut.

Pour sulfuric acid into the “cup” and add a small particle of zinc. You will cause the effect of the so-called galvanic element: the acid will destroy rust, and the iron cations will be helped to restore zinc.

As a result, the nut can be unscrewed without damaging the part with acid.

Prevention of the problem

In order not to worry in the future about how to unscrew a rusty nut on a car, bicycle, or faucet, when installing this part, do not forget to do the following:

Be sure to treat the threads with lubricant: graphite, silicone, Teflon.
Avoid using solid oil and lithol. The fact is that these substances are perfect only for dynamic, moving parts, but not static ones, which include a bolt and nut. In our case, such a lubricant will only ossify and, on the contrary, will interfere with unscrewing.

We hope that you found a suitable method that helped you cope with the problem that arose. Once again we draw your attention: do not forget about its prevention!

Source: https://www.syl.ru/article/347570/kak-otkrutit-zarjavevshuyu-gayku---sovetyi-mastera

How to remove rust from a bolt

Have you ever cleaned out your garage and found a bucket of tools, an old thing that may have gotten wet and rusty? DON'T THROW THEM OUT! And remember that metal deteriorates over time and rust does its job. There is a simple solution to restore their appearance for very little money, because buying new tools will cost you a decent amount.

1) So, have you found bags of nuts, bolts and tools corroded? If you do not know about the properties of vinegar, you will think that they are useless, nothing more. Wear gloves to avoid getting rust on your hands, because rust is very difficult to wash off. Gather all your corroded tools, nuts and bolts together. Depending on how many rusty things you find, select a container so that everything will fit. You can use a large basin.

Place your tools in a bucket and fill the bucket with vinegar until the vinegar covers the contents of the bucket. You won't believe the properties of the almighty vinegar. It will eat away the rust on tools, bolts and nuts. This will all bubble up and you will watch as the rust starts to rise to the top.

https://www.youtube.com/watch?v=o9jqgIoKhzw

If your tools are very corroded, you will need to leave them for several days, maybe even up to a week. Check them and when you see clean metal then it's time to take them out. Be sure to wear gloves when checking your tools! After taking them out, rinse them under running water and let them dry on a rag, or wipe them dry using the same rag. The vinegar cost practically pennies compared to what new tools would have cost!

2) There is a longer method, 1.5 - 2 months, but it cleans deeper rust! You can get rid of it with distilled water and citric acid! This is done very simply. Take a plastic bucket, collect rusty-oxidized screwdrivers, keys, locks in it, fill everything with distilled water and put this thing in the garage, basement so it doesn’t interfere!

Let's move on!

We barbecue for 2 months and rest!

We take a plastic container in it and begin to prepare the solution: put on gloves, take 1 teaspoon of citric acid per approximately 300 grams of water. We immerse the instrument briefly for about a day and do not forget to rinse the instrument under running water during these days and at this moment we look at what is left of the instrument or not. You can rub it with a toothbrush, and as soon as all the rust is gone, you need to treat the whole thing with soda!

We dilute the soda solution and dip the parts!

More complex ways:

3) Clean rust from metal, as my grandfather said!

You can burn rusty iron at a fire.

Important. For the first time, take a less important item as the metal is being hardened!

Heat it thoroughly on the coals for another hour, the most important thing is not to melt it.

Remove from the coals and place completely in a container of water.

Until the metal cools down.

Clean with a metal brush in a bowl of water.

How to remove rust: 9 ways

Rust always causes distress when it appears. You can find it anywhere - on any metal, on tiles, on clothes, on porcelain, on plumbing fixtures, on dishes, on decorative items and much more.

On the household chemicals market you can find various products that help fight such difficult-to-remove stains, but you can also use what you have on hand. On the Get Rid website.

Ru you can find non-hazardous, environmentally friendly and fairly simple home remedies to help remove rust .

How to remove rust - home remedies

I would like to emphasize that when using any of these products, you should not increase the exposure time on the stain. This may result in damage to the product. And after treatment, it is important to rinse and wipe dry the exposed surface - this will prevent rust from reappearing.

Source: http://zaz-avto.ru/sovety-avtomobilistam/chem-udalit-rzhavchinu-s-bolta.html

How to remove rust from a bolt?

Bolted connections are the most common in modern industry. However, most bolts are made from high alloy steel. They are highly durable and can withstand heavy loads, but are susceptible to corrosion.

You can order galvanized steel bolts on the manufacturer’s website. They do not have this disadvantage. Although, if the bolts that need to be used are almost completely covered with rust, you should not discount them. Both the head and the thread can be quickly and easily cleaned of rust.

Clean a bolt in seconds

To clean a steel bolt from rust, you will have to use a high-pressure hose. It is a rubber hose that has a metal braid inside.

We don't need the sleeve head itself. To clean the bolts, you will have to make holes in the hose itself (through holes). So it is allowed to use only a decommissioned sleeve.

For cleaning you will need the following tools:

screwdriver;
set of drills;
head for bolts that will be cleaned using a screwdriver.

Drilling holes must be done one to one. That is, if you plan to clean a 12mm bolt, then you must use a suitable drill. Naturally, making a hole with a drill of such thickness will not be so easy.

For this reason, craftsmen recommend using a drill of a smaller diameter at the beginning. And then widen the hole using a 12mm drill bit.

Bolt cleaning process

There is no need to use any compounds or polishes. It is for this reason that it is very important that the sleeve has a metal braid. We insert the bolt into the hole made and, using the screwdriver attachment, begin to screw it into the sleeve at maximum speed.

For high cleaning efficiency, it is necessary to perform the procedure several times. Those. tighten the bolt, unscrew it, tighten it again, etc. The procedure is performed until the bolt threads are completely clean.

Important! If you want rust removal to occur even on that small segment that connects the end of the thread and the bolt head (there are no threads there), then it is recommended to cut off the upper part of the sleeve (cut off the rubber).

Source: http://www.stroim-2014.ru/kak-ubrat-rzhavchinu-s-bolta/