Tip 1: How to unscrew the bolt ripped

Over time, the metal from which the fastener is made, shall become less durable, easily broken, and the thread, respectively, it can easily be disrupted.In this case, unscrew the bolt becomes more difficult, but knowing a few ways you handle it.
you need
  • - pliers;
  • - pliers;
  • - wire cutters;
  • - claw hammer;
  • - glue "Liquid nails";
  • - otvetka;
  • - another metiz;
  • - a set of extractors;
  • - drill with a drill of smaller diameter.
Guide
1
Try hook bolt vydergoy or gvozdodёrom and pull as enable stripped thread.Then, without removing the tool, unscrew it using a screwdriver or a wrench, depending on the design and bolt.
2
If you do not gvozdodёra, slip under the bonnet bolt a flathead screwdriver, Abut her about anything, to form a lever and a hammer gently tap on the handle of a screwdriver - bolt will gradually gofrom the hole.Try this time to tighten the bolt screwdriver counterclockwise.
3
Little bolt cutters try to snatch.Just hold the hat between the jaws of t
he tool and with the force of the pull.If the thread is completely torn, it will not work, and if not completely - turn the Clippers with bolt th counterclockwise.
4
If screw cap provides a screwdriver slot, the problem lies in the fact that it is impossible to make an effort in the right direction as a bolt scrolls.To fix this, grind under the bonnet monkey wrench or just make two shear against each other under the pliers.Grasp the bonnet and unscrew, with the pull bolt themselves.
5
Buy a set of extractors - a few taps on the back thread.Drill bolt ie deep hole drill 3-15 mm smaller than the inner diameter of the fastener.Pick Extractor size and twist it counterclockwise.At that moment, when the cone, tapering at the bottom of the tap, comes to the end, bolt will rotate along with it - at this point begin to unscrew the bolt ripped in the right direction.
6
On bolt with stripped threads, located in a remote place, drip a little glue on the metal, such as "Liquid nails", and stick another hardware.Surfaces previously degrease.After drying, try to pull the two bolt together, pulling taped to himself and touching it in the course of the thread.

Tip 2: How to pull the bolt

Imagine the situation when in the process of repair of equipment you need to disassemble any node, but you can not do this because of one of the mounting bolts notIt turned the cap.The situation is well known, do not despair.There are some fairly simple solutions to this problem.
How to pull the bolt
Guide
1
If, for example, the place of the fracture of the bolt is located in the immediate vicinity of the surface of the part, it is necessary to resort to a sharp core.Set it at an angle to the edge of the bolt and tapping, try to give it a counter-clockwise rotation (screw with right-hand thread).Sometimes that is enough.
2
Another option can be implemented using a grinder, provided that the upper part of the "decapitated" the bolt a little above the surface of the part.Cut it in the groove under the screwdriver with a thin cutting disc size 0,8-1,00 mm and can start extracting the bolt.
3
Next, perhaps the most reliable way - via the tap left-hand thread.First, make a center punch mark on the center bolt and the drill hole diameter is 2-3 mm smaller than the bolt, and a depth of 10-15 mm.Then start to screw into the hole to tap, as long as resistance to its rotation starts to exceed the frictional force of the bolt thread, after which it will start to turn out.
4
In the absence of a tap, you can try to remove the screw with a screwdriver, which sharpened the edge tapered so as to fit into the hole.For a more secure fit in the hole on the screwdriver lightly several times to strike a hammer.
5
To extract a broken screw tap can also be used with right-hand thread.Once the bolt begins to go deeper, begin to twist it.A further method involves the use of welding, but only under three conditions: a) If a screw has a diameter of 10-12 mm, b) has a highly skilled welder and c) breaking line is located close to the surface (in this case it is possible to try to weld the broken piece of the boltmetal and remove with the help of the bolt).
6
At the very least, when all of the above methods are not able to realize, is to drill bolt drill bit with a diameter corresponding to or close to the diameter of the bolt.This is followed Drill hole for the new thread larger.For example, when M8 or M12 take the M10.

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