What to do if a bolt carving broke. Everything is simple: how to unscrew the broken bolt


Quite often, when using such a fastener, as a bolt occurs situations when the product head is laid out, and the hairs itself remains inside. At the same time, it becomes necessary to remove this balance, without damaging the threads so that the hole can be operated and then. Given this, the topic about how to unscrew the broken bolt is very popular and requires more detailed consideration.

Types of fades

Usually, such fasteners breaks at the end of the thread, although there may be exceptions. As a result, the methis itself can be deepened into the hole, play over the surface or to be altered with it. Based on this, decide how to unscrew the broken bolt, you need to pay attention to this moment.

Surface cliff

This type of breakdown includes the option when part of the metric protrudes over the surface. It can be assumed that such a task is to solve the easiest way, without using radical measures. However, before producing any unscrewing of a broken bolt, it is worth treating the place of kerosene to eliminate the tart and weaken the contact of the surfaces.

  • If the protrusion is quite large, then the easiest way to use pliers such as pliers, ticks or clamps, with which you can capture the item and turn it on the thread.
  • Some experts, answering the question of what to do if a bolt broke, which is very tightly sits in the hole, recommend using a welding machine. With it, you can welcome the lever to a hardware, which will result in a big shoulder for rotational movement.
  • You can also use the drill with a diameter slightly less than the bolt itself. The drill is done by a hole along the central axis of the bolt to the entire depth. After that, the remains of fasteners are removed using a hook, trying to unscrew the thread from the bottom.

Opplish flush

It is believed that this breakdown is the most difficult, since sometimes it is very difficult to determine the diameter of the hole, especially if the fasteners were cut. Therefore, in order to determine how to drill a broken bolt of this type, first it is worth cleaning the surface, determining the gaps.

Quite often, the breakdown of the cliff has very uneven forms, which, with this location, it is very difficult to straighten. Drill the product in this state will not work. That is why the core is used first, which they prepare the place in the center for the operation of the drill.

Further actions describing how to drill a broken bolt are described in the surface break point. After spending the hole, the thread residues are simply removed by crochet.

Close below the surface

Such damage is quite complex, especially if the item itself is made of soft metal. Therefore, you need to solve the problem how to unscrew the broken bolt and do not damage the threads in the hole.

First of all, the center of metiza is planned using core. It is best to use a thin tool made of durable metal to accidentally damage the part.

At the next stage, it is worth buying a rapid tap. Its diameter should be less than the bolt itself.

After that, in the very hardware, the hole is drilled under the tap, but they do not greatly deepen it. Next, it is enough to install a tool for cutting threads and turn it along, which will lead to twisting. If this did not happen, the tool is used as an ordinary bolt, but should not be made too much effort so as not to break it.

Extractor

The most correct answer to the question of how to unscrew the broken bolt, the one in which the tool specifically created for this is proposed is considered. It is called an extractor and sold in the form of a set of products of different diameters. Outwardly, he resembles a tap, but without longitudinal slots and with a conical notch for cutting.

To use the extractor, it is enough to drill a hole in the center with a diameter that allows you to go to the tool for several turns. Then begin to turn it down until it stops, and then to full twisting.

Output

There are several options for extracting broken bolts from the hole that can be used with certain types of damage. However, it is best to purchase a set of extractors in advance that you can consider the best tools for such tasks.

If you, by virtue of your profession or hobbies, engage in the repair of technology, the question often arises in front of you: - How to unscrew the broken bolt, the part of which is in your hands, and the other remained in the thread?

In this article we will make a brief overview of how to solve this problem. The choice of the method remains for you, as the skills and the sirruchnaya "Arsenal" "have all different. Let's start?!

Consider how to pull out a broken carving bolt with extractor

For those who do not know - extractors there are external and internal. If the bolt broke down in such a way that it is not "to grasp", "then it is the internal extractor that can become the only solution to the problem.

The inner extractor resembles a tap. The shank (non-working part) is made "under the square" for tools.

By type of working part, extractors are divided into wedge-shaped, rod and screw (spiral).

The working part of the wedge-shaped extractor has a form of a cone with edges, the cross section of the rod is equally over the entire length.

The screw extractor is a cone with a thread of the left or right rotation.

The order of work is as follows:

Getting Started directly by car, take care that the repair point is available for a drill, screwdriver, etc. Well, if the question is how to pull the broken bolt from the wheel hub - the repairs area is open. But if it is not "to get" to the part, do not be lazy and make the necessary disassembly, that is, dismantling everything in this case is superfluous.

If you do not know how to unscrew the broken aluminum bolt - the use of the extractor will be the best solution.

Extractors are better to buy in "Extended" "sets, i.e. Complete with sweepers and guide bushings for them.

But, unfortunately, a similar tool is not always available at the moment or they can not be used due to the design of a particular node.

If you have problems with torn faces, we recommend choosing a better quality fastener: https://avselectro-msk.ru/catalog/4976-bolty - bolts of suitable quality that can be bought in any quantities.

Alternative ways to unscrew the bolt with torn faces

Welding nut as a way to unscrew the bolt without faces

This old tested way out of a dead end during the repair of many.

Specific case. Front sowing lever fastening broke on an old Suzuki IGNIS. Moreover, the distance between the eye of the lever bracket did not allow neither to score either screw the extractor into the debris. Welding in this case turns out to be the most efficient means unscrew the broken bolt.

The essence of the reception is as follows.

We select the nut of the suitable diameter, we put on a broken bolt and weld. If the bolt broke to the surface with the surface of the part, as accurately fix the nut in the center of the bolt. Cook. Carefully, without jerks, unscrew the broken bolt for the nut.

Disconnect the battery terminals! Ensure the preservation of wiring, hoses, plastic products from melting and fire!

Suppose the extractor and welding are not available to you. Then, if the bolt broke into a thread, apply

Drilling - an excellent opportunity to surround a bolt without faces

First of all, we calculate the diameter of the drill. The formula for standard thread is simple - from the diameter of the bolt (threaded part), we submit the amount of the thread step.

The next important point is how to avoid drilling drill to the side? To prevent such trouble there are conductors. Conductor (simplified) is a plate with holes. In the holes are perpendicular to the guide sleeves (sleeves) corresponding to the drill diameter. The conductor is fixed on the details, the sleeves are combined with holes with broken bolts. You can drill! It is the sleeve that will prevent the deviation of the drill.

The conductor is indispensable if you need to remove a broken aluminum part bolt. Especially if it is the head of the engine cylinder block.

You can also combine drilling with knocking out the residues of a broken bolt using a painting.

This technique is used if the threaded holes are through. Starting with the drill of the smallest diameter, drilling a debris. When the "wall" "it will relax, we remove it with a paint. Then we clean the thread by the toll.

In this way, you can, for example, get rid of the fragments of stuffing fastening of the receiving pipe to the exhaust collector on the VAZ2114-15 without removing the latter from the engine.

Heating in order to turn off bolt with torn faces

Consider this situation - there are no extractors, welding, conductor and good swore. How to pull the bolt if he broke?

You can solve the task (and sometimes very successful) it is possible to heat the parts of the hot. After cooling, they will become militant and may well get out of chisel, kerner, etc. The described methods of filtering broken bolts are not an exhaustive, universal response to the tasks of this kind. For clarity - browse the material on the video.

Thanks for attention!


Personally, I repeatedly encountered a problem when a bolt breaks or a stilette under the root. Moreover, I am not any car mechanic or a mechanic. All this is talking to what such a thing happens with an ordinary person who periodically deals with a technique or other technical part.
Well, since you fell into such a situation, you should not despair - everything is fixable. I offer you seven ways to get out of a similar position and release threads from a fragment of a hairpin or bolt.

Preparation Before turning the debris

But do not hurry to immediately proceed to impact. Before that, it is necessary to take measures that your accompanying efforts will make it easier.
First, sprinkle the sneaking of the penetrating lubricating liquid. It can be any "liquid key", WD-40. Little wait a bit.


Next, to slightly remove the internal stresses, the gas burner is pretty the fragment and place around.


Well, then then we turn directly into the wreck of the hairpin or bolt.

First method: flat screwdriver and hammer

This is the easiest way, but it is not always suitable. At about half the case, the hairpin is clogged with a protruding fragment, which is just possible to cling.


We take a flat screwdriver, we rest in a fragment and shock movements at an angle in the side of the thread discernment gently turn the chip.


This method is suitable if it does not require much effort to discernment. If the effort is not enough, then go to the second method.

Method Second: We try to dismiss the chisel

This method is similar to the first, only instead of a screwdriver take chisel. We also rest in Oskol and shock movements we produce turning out.


The chisel makes it possible to create a greater effort compared to the screwdriver.

Third way: Kern and Hammer

If the bolt chip does not have sharp, or even the thread occurred just below the final surface of the thread, then you can try to use the core.


Remove the core into the surface of the debris with offset and blows at an angle, we produce turning, while the debris cannot be hooed with a pliers or another tool.


Fourth way: weld with welding nut

In my opinion this is the most effective and fast option, but if you have a welding machine. Its essence is to screw the nut on the bolt chip on top.
So, in order to do this, take the nut, but not the same size, but for a couple of units anymore. That is, if the broken bolt was 10, then take a nut on 12. It is necessary for the best and more welding.


Holding the nut with stackers, put it on the debris, but not in the center, but with a displacement. The electrode weld the heel with the nut to one side inside the nut.
Next after cooling, we screw in the usual wrench.

Fifth way: disrupt the stud extractor

It also takes a specialized tool, specially intended disintegration of broken studs and bolts - extractor.


Carnish the center of the studs so that the drill does not run at the beginning of drilling.


Drills the opening of the corresponding diameter for the extractor.


Insert the extractor into the hole and disperse the key.

Sixth way: drill the chip

The method is to select the drill on the lower diameter of the hairpin thread and drill it. Very difficult way, requires skill.
First we pass the drill of a smaller diameter.


Then drill as close as possible.


Shards and stiletooth residues are knocked out with a flat screwdriver.


This removal method does not always justify efforts, but it deserves your attention.

Seventh way: drill under clean and make an insertion

The most time-consuming and costly method of all. But there are cases when this is the only working option to return the node into the working condition.
Drinking the hairpin submissal with carvings.


Cut a new thread by the tag.


This can be finished if the design allows you to choose a thicker bolt or hairpin. If not - we buy insert or order from a familiar lockster.
Lubricate the exterior thread by the thread lock and screw.


Steadmer flush.
And how did you use? Write in the comments, I think your experience will be interesting! All the best!


The node is restored.

Increased humidity of atmospheric air and the content of aggressive substances in it leads to metal corrosion. Replacing parts on an aggregate or an outdoor machine is always accompanied by the danger of faces on the fastening element and as a result of the stagnant repairs. But there are ways how to unscrew the bolt with torn edges using a different tool.

Causes of breaking faces

Not always the desire to quickly replace the failed parts fixed with the threaded connection is performed. Sometimes, trying to unscrew the bolt from the body of the unit, the key begins to scroll.

So that breaks down the faces on the head of the metric when exposed to an increased load. And the following factors may be the result:

  • harness that is caused by the diffusion of atoms with a debt of the connection;
  • displacement of parts connected relative to the axis of the holes, which leads to the screwing of the screw;
  • tightening during installation (increased load);
  • using an inappropriate tool during assembly (for example, to spin the bolt, the cap size of which is 14 mm, the key is used to 17, and a screwdriver is inserted to remove the gap);
  • corrosion seized the surface of the head.

Preparation for unscrewing

Before unscrew the bolt with torn edges, it is necessary to do a number of preparatory activities.. With their help facilitate the twisting.

  • Regardless of which reason the edges were torn, it is preliminarily to process the connection of the junction of the penetrating fluid. As a penetrating fluid, not only well-known WD-40, but also kerosene, brake fluid and, oddly enough, ammonia alcohol. All of them have a big penetrating ability. After applying to obtain an effect, you should wait from half an hour to an hour.
  • Destroy the interatomic links of metal parts can be blowing a hammer over a bolt hat. But in order not to damage the thread itself, the blows should be applied to the messenger and neatly.
  • If there are no rubber and plastic parts, the hotums can be heated using the gas burner. In this case, the flame burner burns the dirt, oxides. Heated metal more supple.
  • If the compound is assembled using a washer of metal or plastic, then freeing the fastener cap, cutting off a grinder or split to chisel. True, such work can be made only if there is enough space around.

Gas key

One way to unscrew the bolt with a torn head is considered to use a gas (tubular) key. But for this it is necessary free space. Since the height of the Hats is small, the key is superimposed close to the body. The key lever is quite long and therefore there should be no sings and convex parts on the housing.

Universality of this tool It lies in the fact that sponges with notches prevent turning, and the squeezing force creates the effect of an eccentric when the handles are closed. Such a key can be unscrewed and the stud.

If the bolt is small, then replace the gas key with pliers. Their sponges have a groove with grooves that tightly wrap the bolt hat.

In some cases, you can use a file or a feet. They cut the head of the head to another key smaller.

If a few faces are preserved on the head, then you can use the head. When unscrewed with it, it is necessary to apply an effort not only torsion, but also to presidate the head to the bolt cap.

Torx nozzles

The second use frequency bolts have a cylindrical head with an internal hexagon. Options How to unscrew the bolt with torn edges several. You can use keys. Their tip is made as an asterisk. To promote such a connection, you need to take the larger key than the inner hexagon.

Hammer drive this key into the head hole. Slots are trying the grooves. Torx bits are not recommended, because they have an inner hole intended for thermal processing. And when punching the grooves of the bit may break. You should unscrew the jerk to avoid the slice of grooves.

If the screw has a small diameter, then in a hat, you can cut the slot under the screwdriver. To do this, you can use the grinder or hacksaw for metal. The slot depth should not exceed 5 mm, and the width must match the screwdriver thickness. For unscrewing, you should take a powerful M-shaped screwdriver.

If the trick with a screwdriver did not pass, you can use the chisel and the hammer. First, an overwritten chisel on the end of the screw is made of jar. Then the chisel is leans in the opposite unscrewing side. Smooth blows are applied with a hammer until the screw breakfasts.

If the bolt does not want to get out, use a special tool - extractor. On the one hand, it has a centering drill, and from another end a conical screw nozzle with left rotation. First, the hole is drilled in the head. Then the extractor turns over. The left rotation is installed on the electric drift or screwdriver and you can unscrew.

Who no extractors can be used by two drills. Initially, the smoother diameter drill is prepared a hole. The second drill of a larger diameter, but less than the diameter of the thread, to not damage it, has a left screw groove. This drill is engaged and unscrewing the screw.

Welding machine

Option using welding before unscrew the bolt with a torn head. To do this, you need to take the nuts of the appropriate size. If the nut does not wind, then it should be larger.

With the help of a welding machine, weld the nut to the residues of the bolt. Then to unscrew the bolt with a wrench or precipitant key. In the same way, it is easy to unscrew the hairpins without using the spilet.

Other methods

There are cases when the thread is broken. And here's how to unscrew the bolt with torn thread without using the screw tools. If you get to remove the fixed element, then the bolt will have sufficient length. The cap is needed to cut.

To twisting you should take advantage pipe key. They can even rotate the round rod. During a twist, a tool with a hardware tightening to yourself to engage the screw threads.

You can drill across the bolt through hole. Insert the rods of the corresponding diameter into it. And using the tube to make rotational movements counterclockwise.

But as practice shows, such bolts are dried, and the remnants of the old screw are removed by the tumbler when the thread run. To produce work with spoiled fasteners, you need good disturbed tools.

When repairing a car there are a lot of problems. One of these is the question of how to drill a bolt without damaging the thread, the video of which can be found on a number of resources. Therefore, it is always helpful to know how to drill a broken bolt that you need to take and how to unscrew the broken bolt without serious and unpleasant consequences for mechanisms and structures.

Open on the surface

Usually this is the easiest breakdown option and it can be fixed without radical measures, which sometimes can harm your car or another aggregate. However, before unscrew the crushed bolt, it is necessary to process the location of the catero breakdown. This will help eliminate the avgar and weaken the contact of the surfaces. Next, you need to follow the following recommendations:

Opplish flush

This type of breakage is considered the most difficult to repair, as it is very difficult to determine the diameter of the opening, especially when cutting fasteners. Therefore, in order to extended a broken bolt of a certain species, it is necessary to clean the surface. This will determine the clearances we need.

Often there is the following unpleasant situation: The breakdown of the cliff has curves that are very difficult to handle and straighten. And to drill the product in a similar state is categorically not recommended, for there is a risk of finally handle the design. Therefore, you first need to apply the core, which is prepared the place in the center of the operation of the drill.

Further procedure allowing to drill A broken bolt broken in one way or another, similar to the surface cliff. After creating the hole, the residues from the thread is removed using the hook.

Bolt breakage below the surface

Complex fault, especially for a piece of soft metal. Therefore it is very important to unscrew the broken bolt without damaging the threads in the hole. The procedure here is the following:

If the last item failed to implement, the tool can become directly bolt. However, it is not worth the excessive effort, since there is a chance to break it. As a result, you can remove the old broken part and spin new items.

Using an extractor

However, the most faithful option to help unscrew the broken bolt is to apply a special tool for this operation. It is called an extractor, it is sold in the set tools of different diameter. Externally, it looks like a tap, but there are no longitudinal slots on it and there is a conical notch for cutting.

You can use the extractor after the hole is drilled in the center with a diameter, which will allow you to enter a tool for several turns. Turn it until it stops, and then until complete twisting.

So, here are some ways Recalling broken bolt elements. Each of them should be applied depending on the complexity of the breakage and the presence of the appropriate toolkit. But the most practical and optimal option is to purchase a set of extractors. They are practical enough and allow working with bolted parts of various sizes and with any type of threads.

Be sure to process surfaces, it will save from excess contact and contamination. Good job by unscrewing broken bolted boltsFor this depends on the full work of the entire mechanism, especially the car! More information about the ways to unscrew the broken bolt elements can be found with the video on specialized sites or forums!