How to unscrew a licked bolt. Methods for unscrewing a bolt and a screw with torn edges

In this hack you will learn how to unscrew a screw with torn edges and unscrew even hexagonal screw with the help of not cunning manipulations.

We all know that in the modern market the quality of products is falling and falling. Someone connects with the desire to reduce costs, someone with a shorter service life and, therefore, a replacement for the same product or a more “modern” one. I can't say anything, but recent times I often wonder how to remove a broken screw on a laptop or other household appliances, after all, twisting and unscrewing it several times, in a modern laptop, you are likely to rip off the slots, and this is very unpleasant. In fact, such a problem occurs not only in household appliances and electronics, but also in many areas where fasteners are used, and now we will explain how to unscrew a screw with a torn slot.

How to unscrew a broken screw

To do this, we will take several options.

1. The most rude, but in most cases helping. Just push the screwdriver in the direction of the screw and turn with enough force, so the friction will increase and therefore there is a good chance, slowly but surely unscrew the head screw.

2. Of course, this is not the most delicate method, and for fragile things, such as laptops and TVs, it is not very suitable, because there is a chance to damage the device. In that case we will try unscrew the screw with a torn cross heating it (for example, with a soldering iron), and therefore making the case plastic softer. Of course, this is not suitable for all cases, but to disassemble the butovuha, they often use it.

3. Use electric screwdrivers and screwdrivers. Due to the much higher number of revolutions per minute than can be done with a conventional screwdriver, a screwdriver will quickly unscrew even an almost dead screw.

4. If none of the above methods helped you, then I advise you to use a rubber band (for money). Putting it between the hat and the screwdriver with a rubber band and with ease unscrew the screw with a torn off head even without the use of power tools.

5. It can be applied when the screw head is more like a nail head. We take a needle file or a triangular file and create a grit or two again. In order not to damage the rest of the surface, try to raise the screw at least a little above its level, but simply speaking, unscrew it a little.

Now you know what to do with the spoiled cross head, how to unscrew (unscrew) a screw with torn edges, small or large, it doesn't matter.

Fulfilling repair work, sometimes the question arises: how to unscrew a bolt or screw with torn edges. This problem has several solutions, knowing which you can unwind almost any hardware. Even in the case when you overdid it and tore off the head or broke the stud, there are ways and tools to unscrew the fragments of the fastener.

Any problem is better to prevent than to solve. Therefore, if you have applied enough force and the fastener does not budge, you do not need to continue until you damage it completely. Better do the following:

The above steps will not be superfluous in the case when you decide how to unscrew a bolt with torn edges.

Bolt removal methods

Below are the most effective ways loosening damaged bolts and screws.

With broken edges

When deciding how to unscrew a bolt with torn edges, you need to consider whether there is access to it, location, and also what tool you can use. Based on these factors, you can use one of the following methods:

In complex cases, in order to achieve the desired result, you need to combine several methods. Therefore, first assess the situation, decide how you can unscrew the bolt, and only then get to work.

With a broken head

Very often, when disassembling old threaded connections, you can not only damage the edges of the bolt, but also rip off the head. Then the question arises: how to unscrew the broken bolt. If you have disengaged the parts and the stripped bolt protrudes from the body of the part, then you can use all of the above methods.

But how to unscrew a bolt with a stripped head if the bolt body does not protrude from the part? There are several options for solving this problem.

Precisely drilling a hole is quite difficult. And if you damaged the threaded connection, then you can correct the situation only by reaming the hole and threading a larger diameter.

A sheared stud is no different from a bolt with a stripped head, and therefore the methods for unscrewing it are the same.

Thread damage

There are times when the fastener thread is damaged. In this case, the hardware scrolls freely, but it cannot be removed from the threaded connection. To solve this problem, you need to lift the bolt. This can be done with a screwdriver or other similar tool that is pushed under the head and lifts it with effort. When the bolt rests, it begins to rotate in the direction of unscrewing. This is done until the hardware is completely removed. If the threaded connection hole is through, then it can be pushed from the back using any tool suitable for this.

If you have a similar problem with the nut, then proceed in the same way. Hardware with damaged threads must be replaced, therefore, if there is access, the nut can be cut off with a grinder or knocked down with a chisel.

Under an asterisk and a hexagon

Recently, fasteners with asterisk heads, hexagons and more exotic forms are increasingly used. If the edges on such a fastener are damaged, and you need to unscrew it, then you can act by analogy with ordinary bolts, with the only difference being that you need to use a tool with the appropriate shape of the edges to unscrew it.

Removing the screw

A lot of trouble is delivered by screws with torn edges. Unscrewing such screws is not easy, but there are several ways to solve this problem. In order to make it easier to unscrew them, you need to do the same preparations same as for bolts.

In the simplest case, when the screw protrudes above the surface, you can try to grab it with pliers, wire cutters, or another similar tool and unscrew it in this way. But most of the time there's nothing to grab on to. Then you can try the following methods:

Sometimes it helps to use thin rubber, for example, from a balloon. A piece of such rubber is placed on top of the screw and unscrewed by pressing a screwdriver through it. This allows you to increase friction and avoid slipping of the screwdriver.
A screw with a figured head can be converted into a flat screwdriver by sawing a groove with a hacksaw.
In order to solve the problem of screwdriver slippage, you can use cyanoacrylic glue, such glue dries quickly and fastens well metal surfaces. The procedure is simple: the screw and screwdriver are degreased, glue is applied to the screw head and the screwdriver is pressed against it, observing alignment. To speed up the setting of the glue, you can sprinkle it with soda. Wait for the glue to harden completely and try to unscrew the screw.

In order to avoid such problems in the future, renew all threaded connections with lerks or taps before assembly. Replace all damaged fasteners. Be sure to lubricate the threads and fasteners as a whole. It is best to use graphite grease for these purposes.

Disclaimer

Attention, the article is for informational purposes only and is not a guide to action. The site administration is not responsible for potential damage to your property. If you try to repeat the following, you will do so entirely at your own peril and risk!

So, problem. The star screw in the lid of the laptop turned out to be of poor quality. Despite the fact that all the other screws in the cover were unscrewed without any problems. In general, it does not matter what exactly led to such a not very pleasant result, the main thing is that it exists and something needs to be done with it.

So, for the operation to remove the objectionable broken screw from the device, we need the following tools. Screwdriver, soldering iron, solder and flux.

In order for the solder to seize, we lubricate the screw with flux.

We heat up the soldering iron, take a drop of solder on the tip and drip it onto the screw. While the tin is not frozen, insert a screwdriver into it.

As a result, we have a new grip for the screwdriver, which will allow it to catch on the screw and unscrew it. Thus, you can release the cover or any other thing that was previously tightly screwed.

Perhaps for many this example was not a revelation. But I hope it will be useful for someone. Often, problems that at first seem quite serious and unpleasant have fairly simple and affordable solutions, for which you only need what almost everyone has at home.

In any case, now if you run into the problem of licked bolts, you know how to solve it with the help of improvised means.

If you find an error, please highlight a piece of text and click Ctrl+Enter.

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Not every repair goes quickly and smoothly. Sometimes the occurrence of small problems can take a lot of time and effort to eliminate them. Here, for example, how to unscrew a bolt with torn edges? So that you do not waste time searching for and viewing videos and photos on the Internet, we have collected different variants answers to this question in one article, which we invite you to read.

The reasons why such problems arise, as a rule, are associated with the effect of sticking, displacement of the fastened parts, as well as with a strong “tightening” of the bolt at the time of installation. In this case, a suitable tool is not always used (the key for 13 is easily replaced with a key for 14 with a screwdriver), which contributes to the tearing of the edges of the bolt.

Preparatory work

Regardless of the reasons that caused problems with unscrewing the bolt, it is worth doing a series of preparatory work, and only then proceed to locksmith operations.

open up bolted connection penetrating liquid, which will greatly reduce the coefficient of friction. As such a fluid, it is advisable to use WD-40, kerosene or brake fluid. After the liquid is applied to the problem connection, you should wait 30-60 minutes, and only then proceed to unwind.
You can pre-tap the stuck hardware (for example, with a hammer). This must be done carefully so as not to damage the thread itself.
It is possible (if the location allows) to heat the stuck bolt with gas burner, which will cause rust and dirt to turn into ash, and the metal itself will become somewhat more pliable.

How to unscrew a bolt with torn edges?

It is very successful if there is space around the problematic connection, which allows you to use tools such as an adjustable wrench or pliers to unwind.

Bolt with torn edges for a screwdriver

If access to a bolt with torn edges is limited, then you can make a notch on the bolt head with a chisel or using a grinder. After that, you need to try to unscrew it with a screwdriver, and if it does not give in again, then put the screwdriver at an angle to the stuck bolt and hit it with a hammer, trying to create a rotational movement (counterclockwise).

Hex Bolt

Consider the different versions of the bolts and the methods that are suitable for unscrewing them:

Bolt with a protruding head for an internal hexagon or an asterisk

Such a bolt can be unscrewed:

With a flat screwdriver, having previously made a notch on the bolt head with a hacksaw or grinder (it is important to cut with absolutely vertical walls so that the screwdriver does not jump off during unwinding);
With the help of a TORX sprocket of a suitable size (selected so that it does not fit into the hexagon hole with slots, but is not too large). Such an asterisk should cut through the bolt head with splines, entering tightly into the head itself. Then you should unscrew the bolt with a jerk to avoid breaking the sprocket splines. It is not necessary to use TORX sprockets for this manipulation, which have holes in the center, since they break off when clogged.
Using a drill, a drill and a set of special extractors (sold in construction and car dealerships). To do this, we drill a hole strictly in the center of the bolt, carefully drive an extractor of a suitable size into it, and then unscrew it with pliers along with the bolt. This will be easy to do as the extractor has the opposite threading direction to the bolt.
Using a drill with a reverse and a left-hand drill, the diameter of which should be slightly smaller than the damaged bolt. First, a small hole is made with an ordinary thin drill, and then we put a left-hand drill in the drill and turn the drill on inverse rotation mode.

Bolt with hexagon hole

Such a bolt can be unscrewed:

Using a needle file to obtain the next hex size (in this case, the bolt can even be reused);
Using a TORX sprocket of a suitable size;
With a flat screwdriver, having previously made a notch on the bolt head with a hacksaw or a grinder;
With the help of an extractor, which is screwed directly into the hole for the hexagon.

Steel connecting rod bolts

Such a bolt can be unscrewed:

Using an extractor of a suitable size;
With electric welding. To do this, you need to insert and weld an unnecessary hexagon that matches the size of the bolt. It should be noted that this method is only suitable for bolts made of steel.

How to unscrew an asterisk bolt with broken edges

Similar problems can be dealt with by almost the same methods that were proposed above for unscrewing hex bolts, namely:

Use an adjustable gas wrench with compression of the part;
After making a cut on the head of the bolt, unscrew it with a flat screwdriver;
Using a special extractor of the appropriate size.

In conclusion, I would like to note that there is a special tool for unscrewing bolts with torn edges:

Stud driver;
Screwdriver, etc.

However, their acquisition is only advisable if you encounter such problems quite often. Otherwise, try to find a way out of the situation by applying the methods that are given in this article.

Almost all equipment is assembled using fasteners, where bolts or other products are used. But when it becomes necessary to unscrew them, they can turn out to be rusted and already unusable.

These elements often turn out to have torn edges, threads, or their head breaks off. Buthow to unscrew a bolt with stripped edgesso as not to spoil the whole structure?

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Why fasteners are needed

Fasteners are the most important elements of mechanical engineering, which are used almost everywhere. The most common fasteners that are threaded are:

screws;
bolts;
nuts.

A bolt, like a screw, is a rod with a head that has one threaded end. Screws are usually classified into two types:

Adjusting, which fix the parts mutually.
Fasteners, which are used to connect a detachable character.

The screw heads can be cross recessed or single slotted.

Usually, given element necessary if you want to fasten additional element. Often a machine screw with a countersunk head is used instead of bolts, since the protruding head interferes with some mechanisms.

Most often, screws are used when it becomes necessary to fix parts that have been mounted on shafts or axles.

As for the bolts, they form a connection with a threaded hole and a nut.Hex bolthas a head on one side and a screw thread on the other. They are intended for fastening such parts that have a small thickness, or if you want to often separate the elements. That's why it's so important to know how to unscrew the stuck bolt.

Nuts are a fastener with a threaded type hole designed to transmit torque. Nuts are available in various shapes, depending on the conditions of use.

Reasons for the failure of fasteners

As a rule, the reasons why a bolt becomes unusable can be the following:

sticking;
displacement of parts that are fastened with the participation of bolts;
excessive overtightening during installation;
use of inappropriate keys;
uneven forces during unscrewing.

Preparatory work

Depending on the reason why the bolt is not loosened, various preparatory measures may be required.

For example:

Open the bolt joint using a penetrating fluid that is designed to reduce friction. You can use substances such as kerosene, brake fluid or WD-40 for this purpose. To do this, you will need to apply the substance to the connection and leave for about an hour. Only after this time has passed, you can start unscrewing.
Some people use a hammer to knock on the bolt, but only so that the existing thread is not damaged.
You can try to slightly heat the element that has boiled with a burner. This procedure causes the resulting dirt and rust to burn off, after which the bolt metal becomes more pliable.

Experts answering the questionhow to unscrew a screw with torn edges, they say that this is done in exactly the same way.

How to unscrew a bolt with torn edges

Once all the preparation procedures are completed, you can proceed with the extraction, buthow to unscrew a bolt with torn edges? First of all, for this you need to purchase all necessary tools. In order to carry out your plan, you can use the following methods:

Take a gas key, but it's only good if space allows. It is possible to use a gas wrench not only on bolts that have a surface with edges, but also on cylindrical ones, when the thread is completely torn off.
A damaged bolt can also be removed with ring wrenches, where there are different heads for torn edges. In this case, you will need to select the proper head size, otherwise it will not work.

Important! The longer the key, the easier it will be to unscrew the fastener.

If using the methods described above does not work, then you can resort to using other methods.

Prices for gas keys

gas key

How to unscrew a bolt under a screwdriver

Often the situation with bolts and screws confuses the owner, because not everyone knowshow to unscrew the bolt if it does not get out.

When there is practically no access, you can make a notch with a chisel or grinder. After the manipulation, unscrewing the bolt with a screwdriver will be quite simple.

Although in some cases this does not give the desired result, then you can take the same screwdriver, placing it at an angle, and tap it lightly. But this must be done so that the bolt begins to rotate.

To the question how to unscrew a hexagon with torn edges, experts say that this fastener can be removed by the following methods:

Using a needle file, which will help to get the size for the hexagon.
Using a TORX sprocket, but it is important that it is of the proper size.
A screwdriver that can be used if you first make an even notch.
Using an extractor that screws into the hex hole.

Bolt for internal sprocket or hex

It can be unscrewed by the following methods:

A flat screwdriver, but in this case you will need to make a notch with a grinder or a hacksaw. This must be done in such a way that the cut is with clear vertical walls, otherwise the screwdriver will jump off.
An asterisk TORX, which should not pass into the hole with slots, but should not be larger than this size. She must cut through the hat and fit tightly into it. Next, you should unscrew the bolt jerkily, because otherwise the slot may break.
With a drill, drill and extractors. To carry out the unscrewing procedure, you will need to drill a hole in the center and hammer the extractor there right size. After that, using pliers, unscrew the element. It is very simple to carry out the unscrewing procedure using an extractor, since it has a thread that is opposite to the thread.
A drill with a left-hand rotation or reverse drill, the diameter of which is smaller than the deformed bolt. To carry out this procedure, you will need to drill a small hole with a thin drill and only then insert a left-hand drill. Naturally, now the drill will need to be put on the intensive rotation mode.

Attention! You can not use an asterisk that has a hole in the center, so when clogging they break.

How to loosen a hex bolt

This fastener can be easily unscrewed in the following ways:

With the above asterisk.
Using a needle file that makes the proper size for a hexagon.
A screwdriver, but before that, just like in the previous versions, you will need to make an even notch.
Extractor, the method of use of which has already been described.

How to unscrew an asterisk bolt with broken edges

To accomplish what you want to do, you need to knowhow to unscrew the sprocket bolt. After all, unscrewing such a fastener is possible in the same ways as those indicated above:

After making a cut, simply unscrew the bolt with a flat screwdriver.
Using an adjustable wrench, which is used to compress the part.
Using an extractor.

How to unscrew a bolt with special equipment

The bolts are unscrewed using a variety of devices, and this will allow drill out the bolt without damaging the thread, for example:

keys;
screwdriver;
pneumatic wrench;
ratchet.

But often it is not possible to solve the problem with the methods listed above, and then others will come to the rescue.tools for removing broken bolts:

Thin open end wrenches, but they are categorically not suitable in the case of rusty or stuck bolts, as this breaks the edges.
Impact wrench.
Ring wrenches, which are more applicable, as they cover the head of the product more tightly.
Welding equipment.
A hex wrench that is less likely to cause edge stripping.
Impact wrench.
A multiplier that allows you to apply more force to a stuck bolt.
Screwdriver with a large handle.
Clamping tool.
Extractor set.
A hairpin, which is perfect for products that have a high hat.

Prices for wrenches

wrench

Working with a set of extractors

Initially, you will need to outline the center, for which you need a center punch and a hammer. A pilot hole is then drilled to be used by the extractor.

Attention!In this case, it is important that the axis is not displaced, and the depth of this hole should not exceed three diameters of the drill used.

The extractor will need to be inserted into the hole and slightly knocked out so that the fixation is more reliable. Only then can a tap be used to screw in the extractor. Working with it is quite simple, because after the extractor enters the product until it stops, the product will begin to turn out.

Working with welding equipment

If abroken bolt, how to unscrewit without damaging the equipment itself? Most fast way is to use welding.

To do this, take a nut of a suitable size and weld it to the broken part, but only with inside. After that, the product can simply unscrew the fastener with a wrench.

Welding equipment makes it possible to unscrew a screw or bolt that has a broken head or edges that have been torn off.

In a situation where the head is torn off, a small amount of metal must be deposited on the remaining part, after which a regular nut should be put on and welded.

Unscrewing with a wrench

Unfortunately, this tool cannot be used if the head of the fastener has been torn off.How to unscrew a licked bolt, described in another paragraph. To unscrew it with a wrench, you need to put a suitable nozzle on it. The twisting process itself occurs due to the impact mechanism of the wrench.

The wrench itself is a device that facilitates the process of assembling and disassembling bolt-nut connections. It is very handy if wrench cannot be used.

As soon as the wrench is started, power is supplied to the motor, which transfers energy to the gearbox, which leads to the functioning of the chuck. Almost all devices that are designed for loosening nuts have a special spring that allows the cartridge to rotate back. This fact allows the use of a wrench not only in mechanical engineering, but also in many other areas of activity.

Often the situation arises thatbolt won't loosen what to doin that case, if there are no special skills? There are several simple tips, which make it easier to unscrew the fastener:

In order to carry out this procedure faster, you should preheat the element.
How to remove a stripped bolt? In this case, you can use a hex wrench.
During operation, you can use acetone or oil for lubrication.
The use of a drill with a reverse thread can greatly facilitate the process.
If there are no special tools at hand, then a core and a hammer can be used. To do this, the first should be placed at an angle of forty-five degrees and beat on it with a hammer, but only counterclockwise.
If it is not possible to unscrew the element, then you will need to drill a larger hole and cut the thread again.

How to unscrew a broken nut

In order to accomplish what you want to do, you need to knowhow to unscrew a nut with torn edges. Although it is not easy, you can use a few tips from experts:

You will need a metal brush, which is used to clean the jammed connection. In this place, you should drop a small amount of kerosene or diesel fuel and wait twenty minutes. After that, using the spanner wrench, you should unscrew the nut.
You can tap the nut, but don't use too much force.
Using a gas wrench, as it has a stronger clamp and even round objects can be unscrewed with it.
The grinder, which cuts new edges, will perfectly cope with this problem.
At home, they often use a chisel and a hammer, with which a non-working nut is notched and then unscrewed.

All the methods described above for removing a rusted, deformed or stuck bolt will be within the power of any owner. And the listed tools and equipment can be purchased at any hardware store. It is important that during disassembly not too much effort is applied, it is better to deal with the cause of the problem and fix it.