What can be used instead of a very small screwdriver?
Another option is to use a toothbrush. You melt one end with a lighter, and then immediately insert it into the cavity on the head of the screw. After waiting a bit to let the melted plastic solidify, turn the brush counterclockwise. Of course, it doesn’t help if the screw is screwed too tight.
If you don’t have a flat-blade screwdriver, you can use any flat object to remove such screws. Use a plastic card, such as a bank card. Insert the card into the recess and turn it counterclockwise.
The technology of screws and self-tapping screws
When we talk about a screw, does everyone know what it is?? The word screw comes from the German Schraube. Actually it is a screw, which can easily be driven into any soft material, creating a “self-tapping” thread there. A typical material of this kind is wood.
Why is the screw able to drive into soft materials?? primarily because of the thread, which covers a large part of the screw shaft. This thread is different from the threads on screws and bolts.
Not surprising, since the latter are screwed into metal, not into wood. The thread on the screw is slightly higher. It has a considerable thread pitch and is applied to the threaded section of the screw as a tapered shape, which tapers towards the end of the screw. Incidentally, the screw can be threaded along its entire length, as well as just a portion of it.
diameter. 4 mm., length. 8 mm. The other screw, called a track screw, is 170 mm long and has a diameter of 24 mm. This is quite understandable, since it is used to fasten the railway track to the sleepers. The heads of these screws also have different shapes, determined by the very conditions of installation, the appearance of the product and the requirements that apply to the mounted structure.
A few methods for removing a screw or self-tapping screw with a torn-off crosshead
When selecting a method, the degree of difficulty of the task is taken into account. Determine how deeply the fastener is embedded in the material. Surface condition is evaluated: is there any rust, how badly the screw head is damaged? Tools are used: rubber, chisel, hammer. If you plan to use the impact method of impact on the fastener, it is necessary to prepare a gasket: brass, copper. This avoids the final breakage of the head of the tool.
Push the screwdriver
The main mistake when unscrewing fasteners is not enough force. If you ensure a high degree of tightness of contact of the tip of the tool to the slotted faces, you can contribute to the displacement of the screw. But in this case it is important to know in which direction the product is unscrewed.
Metalware is available with right-hand thread, but less often there are screws, which are screwed in the other direction. counterclockwise. If you apply a lot of force to unscrew the fastener, in this way you can screw it even more into the layer of material. When it is obvious that the product is not resistant to the screwdriver, stop trying to remove it in this way immediately.
Press down on the screwdriver while turning
A regular rubber band and a screwdriver
The action of this tool is similar to that of the screwdriver in the earlier case. However, thanks to the rubber seal, the contact area is increased. This increases the chances of removing the fastener. Instructions:
- it is recommended to use a wide rubber, thanks to this increases the contact surface area;
- first need to cover the sharp edge of the screwdriver elastic material, it is stretched hard enough to ensure a tight fit, but there is a risk of deformation of the coating, so you should not be too zealous;
- tool with a sealant is installed in the slot, then begin to slowly rotate the screwdriver.
The method is suitable for unscrewing not too strongly slugged screw, how is the removal of the fastener. to answer this question, you need to understand the mechanism of action of the screwdriver: it begins to unscrew the fastener element with a tight fit to the slit faces, and the rubber partially fills in the defects of the head. The result is an increase in friction between the tool and the hardware, which moves it out of the way.
The use of wide rubber is recommended
Drill out the head
If the fastener protrudes slightly above the surface of the construction, it can be removed using a drill with an electric screwdriver. You don’t have to do it with a lot of force. You only need to open the chuck. Then position the tool on top of the screw.
When the head is locked in the chuck, the electric screwdriver is turned on. After a few seconds, the fastener is removed. The disadvantage of this method is its limited use. In most cases, the head of the metalware is deformed when it is flush with the surface of the structure. It is not possible to grasp it in the process.
Chisel and hammer
This method will not give the required results if the fastener is fully sunk. The purpose of the percussion tools is to slightly displace the screw. This will make it easier to unscrew. The chisel is applied at an angle to the fastener’s head. The hammer is struck with 1 blow. These actions should not be repeated several times, because it is not advisable to use a single blowtorch. к. The head can be destroyed in this case. This option is appropriate if there is rust on the metal object.
The point of using percussion is to move the screw slightly
Extractor drilling method
Such tool for removing threaded fasteners is available in different variants, differing in size. It resembles a drill, but it has a conical shape and a thickened base. Before using it, you should prepare the fastener. It makes a hole with a small cross-section. The extractor is selected taking into account the diameter of the cavities of the threaded part of the screw. the tool should be smaller. To unscrew the product, a left-handed thread is cut in the hole. Make sure that the screws have a right-hand thread.
Drill a hole in the screw head Screw extractor Do not hit the extractor hard Turn the extractor
When the manipulation is done, the fastener is removed. The extractor is used to unscrew various types of hardware. However, they are not used for self-tapping screws. This is because such products are made of hardened steel. In this case, the fastener will move sideways when you try to drill it.
The extractor is used to unscrew various types of hardware The fastener can easily be removed
Sawing an edge
When the head of the screw is deformed, it is possible to remove such hardware, increasing the size of the slot. But it will increase the risk of destroying the fastener. This will make it harder to remove. To avoid such consequences, it is recommended to perform 1 cut. along the centerline. Both cross grooves should not be widened and enlarged in length.
To make the cut, it is recommended to use a metal hacksaw or an angle grinder. In the process, metal shavings are formed. It should be periodically removed to provide an overview to make a quality cut. Do not make it more than 2 mm deep. This will destroy the head. When the groove is complete, use a flathead screwdriver to remove the hardware.
Use a hacksaw for metal
With what you can unscrew the screw?
Screws of any type can be tried to unscrew with a flathead screwdriver. Use an angle grinder or metal saw to make a straight slot in the screw head. But remember, the slot must be at least ½ the height of the head, otherwise you risk destroying it. This method can be used in combination with others.
Tape it shut, then find small screwdrivers and screw it in. A box cutter’s perfect for that. Buy a screwdriver for eyeglasses. In optics.
Than to open a very small screw?
Tape it shut and then find small screwdrivers and screw it in. A box cutter is ideal for this. Buy a screwdriver for eyeglasses. in the optic.
- Heat and cool
- Choose the right tool
- Knock on the head of the bolt or screw with a hammer and an impact screwdriver
- Use a penetrating rust dissolver or lubricant
- Drill out the screw
- Solder or weld a screwdriver or hex to the screw.
Causes of the problem
Rust can destroy any surface, especially metal. It appears if the part is in contact with water for a long time, it gets salt or various contaminants. Even normal dust can cause friction in the components and make the situation worse. There is a special protective coating on any metal product. If it has been damaged, then corrosion is formed, because of which the fastener ceases to perform its functions. Some metals do not react well to contact with oxygen or chemicals, which also causes rust.
To reduce friction, it is necessary to use aids. They must be of such consistency that they can penetrate into any, even the smallest, hole. There are many special products on the market, with the help of which you will facilitate your work. WD-40 fluid, available in aerosol form, is highly effective. If you can’t find it in the store, buy kerosene, turpentine or diesel fuel. You just need to apply the product to the thread and leave it for 15-20 minutes.
Advice from! Do not use lithol or solidol, as the substance hardens, making it impossible to unscrew the fastener.
Universal material to combat rust