How do you unscrew a particularly small screw, and how do you unscrew a very tight one?

No matter how small the screws are, there are matching special tools.

Pick some oil on the screws, lubricate the screws, and try it with a knife.

There are screwdrivers that specialize in removing these small screws, so just buy one.

Stainless steel screws are used frequently in daily life, but they are easy to rust after a long time, if they are rusty, how to unscrew the rusty screws.

What to do if the rust does not move, use the following aspects to solve it:

1. Infiltration method: use rust remover or kerosene to soak on the nut, and then screw it down after soaking.

2. Shock: For rusty screws, do not use a wrench to screw hard, in case you slip the six edges and corners of the screw, break the screw or break the wrench. At this time, you can use a hammer to gently shake the handle of the wrench, and the screws that are generally rusted can be vibrated and unscrewed.

3. Knock: Use the edge of the square top hammer to knock the rusted stainless steel nut, which is easy to loosen the nut. For example, the nuts that fix the bolts at both ends of the pedals of a bicycle can be struck with force according to the thickness of the pedal and the metal structure.

The nut at the cast iron can be used with a slightly larger force, and the plastic part should be gently beaten. If that doesn't work, you can easily remove the nut by tapping it in a circular motion with a hammer.

4 burning + dripping oil: some screws are very seriously corroded, and the above methods still do not work, so you can use "fire attack". Use a gas welding oxidation flame to grill the screws and nuts thoroughly, and then drip a trace of oil on the red-hot screws.

The purpose of heating the screw is to make the screw expand when heated. The purpose of dripping oil is to make the screw shrink quickly when cold, increase the gap between the screw and the stainless steel nut, and the nut can be unscrewed after the oil flows in. However, if there are plastic devices nearby, use this method with caution.

5 punch: The top of the stainless steel screw of some devices is corroded and out of shape, and cannot be removed with a wrench or wire cutter, which can be used by impact method. First, use a hammer and a top-pedding flat cone to impact a V-shaped groove in the vertical direction of the top of the screw.

Then, adjust the angle of the punch cone and impact it in the direction of the screw. Once loosened, the screws can be screwed out with a wire cutter. When the "one" or "ten" screw sliding, this method can also be used to screw out the screw in combination with the wire cutter.

6. Soldering: When disassembling the device, it is not uncommon to unscrew the screws. For the screws with broken tops, electric drills are generally not used, because the slightest carelessness will drill the wire holes.

It is better to weld a long piece of iron to the broken wire with electric welding. The cross-section of the iron block is made of stainless steel screws with a diameter indeed.

If the above single method cannot unscrew the rusty screw, a combination of ** can be used: for example, the method of burning + infiltration + knocking can be used together.

You can use a wide rubber band to cover the screw, and then use a screwdriver to twist it, which increases the friction and can be easily unscrewed. Here's how:

1. Find a wide-surface rubber band to cover the screws, press and hold the rubber band with two fingers, and fix it on the screws.

2. Insert a screwdriver into the screw mouth, press and hold it hard, and the screwdriver should be embedded with a rubber band.

3. When the screwdriver can be fixed on the rubber band, you can let go of your fingers, and then rotate the screwdriver.

4. In this way, it is easy to unscrew the screws, and when it is almost unscrewed, you only use your fingers to rotate.

5. It is best to see as shown in the figure below that the screwdriver can be successfully unscrewed, and this trick is also very useful for screws with slippery teeth.

The screws are very tight and unscrewed down the method:

1. Pat the thing in reverse, the force can be greater, and after the dust in it is patted out, there will be a gap in the hole, and the screw will be loosened, and then use a screwdriver.

It's easy to twist it.

2. When screwing, choose a suitable screwdriver or wrench.

It can be easily unscrewed and can also be screwed.

A few drops of lubricating oil in the gap can play a role in lubrication, and it is easier to twist up.

3. You can use fire to heat the screw, and then hit it appropriately, and you can screw it off.

Precautions for the use of screws:

1. There are still many varieties of screws, and the scope of application is different depending on the variety, so when purchasing, it is necessary to consider it in combination with the actual situation. If you don't know which one to choose, you can go to a professional for consultation and listen to his opinion, and you should not go wrong. The more common is the expansion screw.

Ordinary screws, self-tapping screws.

as well as machine screws.

2. To buy in a reliable way, you don't have to worry about buying fakes or inferior products, there are still many brands of screws, before buying, it is best to understand the product quality of major brands and **, after a comprehensive comparison, and then make a decision, it is recommended to choose the cost-effective one to buy.

3. If you can't use it at one time, you should store it in a dry place and not touch the water source, so as not to rust.

Use a hammer to hammer on the screw, and then disassemble it, if it doesn't work, use something to borrow force on the wrench. If it really doesn't work, use fire, red around the screw, you can disassemble, but consider whether the surrounding area is suitable for fiery red.

Hello dear The steps to tighten the screws are as follows:1Choosing the right screwdriver bit:

According to the different shapes of the screw heads, select the corresponding screwdriver bits to ensure the efficiency and accuracy of screwing. 2.Align the screw slot:

Align the screwdriver bit with the screw groove to ensure the fit between the screw bit and the screw groove. 3.Force:

Hold the screwdriver in your hand and screw the screws in or out with appropriate force. Notes:1

Choose the right size: Using a screwdriver bit that is too large or has too little ridge can break the screw or bit. 2.

Correct angle: Keep the screwdriver obliquely down about 15 degrees and maintain an inclination perpendicular to the screw groove to avoid damaging the screw or bit. 3.

Proper force: Do not use excessive force to tighten the screws to avoid damage to the screws or the parts where they are located.

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Our lives are inseparable from screws, but after a long time, screws are likely to rust, resulting in screws that are too tight to be screwed. What to do in this case? Which side of the screw is usually unscrewed?

1. What should I do if the small screw can't be screwed down?

If the screw is slightly twisted, it is recommended to put some rubber pads on the screw, which can increase the friction, and then use a screwdriver to unscrew it; If the screw screwing phenomenon is more serious, it is recommended to make a groove on the screw with a file, and then use a screwdriver to unscrew it; You can also drop a few drops of 502 glue on the small screw, stick the screwdriver on it, and wait for the glue to dry completely and bond tightly with the screw, and then turn the pin to try it.

If the screw is caused by rust, you can use a wrench to tighten the screw, and then use a hammer to hit the wrench, the action should be fast, the internal rusty part will be loosened due to the knock, if you screw it again, it will be much more convenient; If it still doesn't work, you can apply some cola to the rusty screw, and after standing for a while, you will find that the screw can be easily unscrewed, because cola has carbonic acid, and rust is mainly iron oxide, and the two are prone to chemical reactions to remove rust.

Second, the screws are generally unscrewed on which side.

Under normal circumstances, the screw is tightened to the right (clockwise) and loosened to the left (clockwise). The mantra is loose on the left and tight on the right. Very few are reverse threads, and reverse threads are used to prevent loosening. The direction is reversed from the normal screw.

Conclusion of the article: The relevant knowledge about what to do if the small screw cannot be unscrewed and which side of the screw is generally unscrewed will be introduced here, I hope it will be helpful to you. If it really doesn't work, you should ask the maintenance personnel to help deal with it, which can also quickly play a role.

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Screw sliding wire, whether it is hexagon or hexagonal, slotted slot or cross slot, if you want to take out the screw of the sliding wire, you can try three schemes:

1. There is a tool called "broken screw extractor" that can be found and tried.

2. Use an alloy drill bit smaller than the sliding wire screw to drill out the screw of the sliding wire.

3. If something is particularly important, it can also be disposed of by electric spark. If the workpiece is not easy to move, there is a portable EDM machine that can be found.

4. If the time is urgent and the screw is large, it can be removed by electric welding or cutting gun.

5. Try soaking it in oil or vinegar for a period of time, or try to put something on it appropriately, such as a strip of cloth.

After the screw of the sliding wire is taken out by the above method, the internal thread of the original threaded hole may be damaged, if the damage is more serious, as long as the wall thickness around the threaded hole allows, you can consider further using the product of "steel wire screw sleeve" for repair. After the repair with the "wire screw sleeve", the strength will not be affected or may even be greater than the original thread strength, and the original screws (bolts) will still be used.

1. Pay attention to the direction of rotation and don't reverse the direction.

2. The plastic nut should not be rusty, observe the exposed threads to see which direction it should be rotated.

3. If it is a metal screw nut, you can put on engine oil, kerosene, and cooking oil, and it will loosen after a while, and if it is plastic, it will not be rusty. However, you can also soak it with a little oil.

4. Cushioning cloth or using tools to increase the friction of rotation will also solve the problem.

Screws play a big role in daily life, but in use, if they can't be unscrewed. Next, I will introduce to you how to screw out if the screws are too small.

1. Use the tip of the scissors to push the screw into the inset and rotate it in one direction.

2. You can use the gas welding oxidation flame to burn the screw and its nut for a while, and then drip oil on the red-hot screw to cool the screw faster, increase the gap between the snail and the snail, and then screw it easily.

3. If the screw is slippery, put a rubber block on it to increase the friction and remove the screw.

Precautions for mounting screws.

1. Before installing the screws, check it to see if there is any damage, if the nut has some cracks, it can not be installed, under normal circumstances, it is not possible to use the old screws, but also to use the new screws, it is safer.

2. The screws should be matched with the tools to lock, and the relevant tools should be prepared before installation. In addition, check that the tool is consistent with the screws, whether it can be used, if it is not matched, there is no way to install and use, the screwdriver should be larger than the screw, or there is no way to install it.

3. For furniture, it is necessary to use a variety of models, and the number is still relatively large, it is recommended that when choosing, the model should be clearly distinguished, and it should be placed separately in the box, so as to ensure that it can be installed normally and prevent the phenomenon of missing screws. It is easy for everyone to install, and it is not easy to get the screw model wrong.

Summary: about how the screw is too small to screw out the relevant content is introduced here, before the operation, first prepare the tool, and then see which way is more appropriate, try to come, so that the screw can be screwed out, in the process of screwing, we must pay attention to the details to avoid some unnecessary trouble.

How to unscrew very tight screws:

1. Hit the screw a few times with a hammer, and the screw will generally be loosened by the shock.

2. Spraying screw loosening liquid can loosen the rusty screws and make them noisy, so as to unscrew the screws.

3. Clamp the screw head with vigorous pliers, and get it with a light board.

4. The heat gun is heated, the principle of hot expansion and cold contraction, the screw gap becomes larger, and it can be unscrewed.

5. Use a macaroni flat-mouth screwdriver to aim at the right side of the nut, and then hit it with a hammer, which is equivalent to screwing counterclockwise, and the effect is quite good.

How to unscrew the screws that He Zhi was holding tightly:

1. Hit the screw a few times with a hammer, and the screw will be loosened at this time.

2. Spray the screw loosening liquid, which can loosen the rusty screw, so as to unscrew the screw.

3. Clamp the screw head with vigorous pliers, and get it with a light board.

4. The heat gun is heated, the principle of hot expansion and cold contraction, the gap between the snails and the wire becomes larger, and it can be unscrewed.

5. Use a macaroni flat-mouth screwdriver to aim at the right side of the nut, and then hit it with a hammer, which is equivalent to screwing counterclockwise, and the effect is quite good.