The screws are very tight how can I remove them, and the screws are too tight to be screwed down Wha

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.

Add some water or oil in the gap between the screws, and then knock it to separate, add some water and knock again if it can't be twisted, as long as it is not rusty, you can unscrew it, do not screw it hard so as not to screw the cap slippery,

1. Shock: Do not use a wrench to screw hard, in case you screw 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 screw can be unscrewed by vibration.

2 Knock: Use the edge of the square top hammer to knock on the nut, it 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.

3. Burning: 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 nut, and the nut can be unscrewed after the oil flows in. However, if there are plastic devices nearby, use this method with caution.

First of all, be sure to use a suitable hexagonal wrench, not ordinary slotted and cross-shaped screwdrivers;

Secondly, disassemble by heating method, from the first point of view, the screw is surrounded by a metal structure, heated with an alcohol blowtorch or a high-power electric soldering iron is heated locally, soften the thread glue, and disassemble while it is hot.

A screw is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of an object to tighten the mechanical parts of the object step by step. Screws are a generic term for fasteners, everyday colloquialism.

The main categories include ordinary screws, machine screws, self-tapping screws and expansion screws.

It is recommended to use the following methods: First, go to the market that specializes in selling hardware and groceries to buy a set of hexagon screw wrenches (about 5-6 pieces), about 5-6 yuan. The second is to use a lighter to burn off the paint on the surface, then drip a few drops of engine oil, and then use a screwdriver of the right size to twist it to see if it is okay!

Look**This screw is not badly damaged, it is possible to remove it.

First of all, be sure to use a suitable hexagonal wrench, not ordinary slotted and cross-shaped screwdrivers;

Secondly, disassemble by heating method, from the first point of view, the screw is surrounded by metal structure, heated with an alcohol blowtorch or local heating of a high-power electric soldering iron, soften the thread glue, and disassemble while it is hot, it should be able to be removed.

First: Add a little oil or kerosene to fill the threads and try again. If, not yet;

Second: If the hexagon wrench is not good, you have to find a *** one, and most grocery stores sell it.

Third: If the hexagon is broken, you can use a chisel to chisel in the direction of the thread. It is also possible to weld a square piece of iron with an electric weld and unscrew it with a wrench.

If it really doesn't work, use a drill bit to knock out the screw, and the diameter of the drill bit must be smaller than the bottom diameter of the thread. The screw is too hard to hit the drill bit, so use a diamond grinding rod to knock it out.

Weld a T-shaped iron, and you're fine.

There is a special bolt loosening agent, buy a can and try it.

Screw glue? After curing, whether it is hard or soft, hard with a hand drill, soft, or with an electric drill.

Is it four-wire or six-wire? To use a professional "loosening agent", you can go and buy a bottle, which can often be used in life.

You can use wax water, gasoline, paint remover, and try it.

Tap a few times before screwing. Spray some rust remover on the screws and you should be able to take it off easily.

Start by soaking some rust or diesel. Then use a T-wrench to screw. (Do it yourself).

Add some lube and try again every once in a while.

It is estimated that it is more powerful to weld a handle to turn it upstairs.

With a relatively small screwdriver, the knife edge can enter the screw head, grasp the handle of the screwdriver, rotate counterclockwise, and the screw will loosen after a few rotations. It is best to use a magnetic screwdriver to avoid missing screws.

The screws can't be unscrewed, I believe that many people must have encountered in their lives when they want to unscrew the screws, and find that the screws have rusted and can't be screwed off. So let's talk about what to do in such a situation today, shall we? 1. We can first use a wrench to tighten the screw, and then we use a hammer to hit the position of the handle of the wrench, the force is slightly larger, so that after a few strokes, the rusty part inside should also be loosened for the knock, so that it will be much easier to screw again.

You can also use the method of fire burning, use the gas welding oxidation flame to burn the screw and nut for a while, and then drop a few drops of oil on the red-hot screw, so that the screw can cool down quickly, which can also increase the gap between the screw and the nut, and it will be very easy to screw it again at this time. 3. If the screw is slippery, we can put a small rubber block on the screw of the slippery wire, which can increase the friction of the screw, and then easily rotate the sliding wire so that the screw can be easily removed.

Hello dear, 1Screws with severe rust should not be hard screwed with a wrench to prevent screwing slippery edges and corners, breaking screws or breaking the wrench. At this point, the handle of the wrench can be gently tapped with a hammer, and the rusted screws will often come loose so that they can be unscrewed.

2.If you still can't unscrew it, you can drip a little oil or vegetable oil along the gap between the screws and nuts, and with wire cutters and wrenches, it can often be easily unscrewed. (The use of oil has no effect on the severely rusty weighing screws, and will affect the disassembly) 3

Some screws are heavily corroded and can be attacked by fire. Steps: (1) Use the gas welding flame to fully grill the screws and nuts, (2) and then drip engine oil or sewing machine oil on the red-hot screws.

3) The screw expands by heating, squeezes the rust between the screw and the nut, increases the gap, and the screw shrinks rapidly when cold after dripping oil, further increasing the gap between the screw and the nut, and the screw can be unscrewed after the oil flows in. Note that screws with plastic parts nearby should be used with caution, and burned screws should not be used again. 4.

The slotted or cross mouth on the top of some screws is deformed and cannot be removed with a screwdriver, a wrench or a wire cutter, and the impact method can be used. Steps: (1) Trapped oak first uses a hammer and flat-mouth screwdriver to impact a V-shaped groove on the vertical surface of the top of the screw; (2) Then adjust the angle of the flat-edge screwdriver and impact it in the direction of the thread unscrewing; (3) After the screw is washed loose, the screw can be unscrewed out with a wire cutter.

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.

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.

What to do if the bolt does not move, the following methods will help you solve your worries, which is worth cherishing.

In construction machinery, when we maintain and unload machinery, we often encounter the situation that the slewing ring, motor bolt can not be screwed or the screw can not be unloaded, which seriously delays the progress of the project. A good bolt dismantling method can bring more benefits, how can we solve the problem of loose bolts?

1. In the primary case, the torque is not enough.

At present, most of the mechanical assembly uses bolt fastener, and after the fastener is solidified, a larger torque is required when the bolt is loosened, so we are required to use a larger torque to screw the bolt.

2. In the primary case, the bolt cannot be tightened, tighten it clockwise, and then unload it counterclockwise.

3. In the primary case, the bolt cannot be screwed, and the bolt is knocked with a tool when unloading.

4. In the primary case, the bolt is complete and the torque is enough, but it cannot be screwed.

Solution; Use bolt loosening agent, clean the environment around the bolt, spray loosening agent around the bolt, wait, and then loosen the bolt.

5. The bolt head slip wire can not effectively tighten the bolt.

1) The parts are machined, the angle grinder processes the platform, and the wrench is used to loosen it.

2) Cut the gap between the bolt head from the top and rotate and unload it with a flat-blade screwdriver.

3) Weld the bolts, wait for cooling, and then clamp the welded bolts for unloading until the associated bolts are loose.

6. Bolt fracture wire extraction.

1) Use an electric drill to drill holes at the bolt breakage, and then use the bolt wire extractor to unload counterclockwise.

2) Weld bolts and other related parts according to the bolt fracture situation, and indirectly take wire.

3) Violent unloading, using an electric drill to drill holes in the broken bolt column, and destroy the broken bolt as a whole.

Spray some rust remover, then unload the screws so it's easy to remove.

Don't worry if you can't remove the screws, with this artifact, it's so easy.

1.You can choose to use the rust remover, drop it to the rusty place of the nut, wait for a while, and then slowly remove the rust, you can loosen the nut, and then it is very easy to take it off.

2.Or use a wrench, tightly put it on the outer part of the nut, and then gently hit the wrench with a hammer, you can vibrate the nut loose, and you can remove it.

3.You can also use fire to burn the surface of the nut to increase the gap between the screw and nut, so that it can be easily loosened.

Use a wrench to cover the screw and then step on it to loosen it, here you should try to step on it accurately, so as not to hit the foot with the wrench**. The position of the screw is relatively high, and after the wrench is set, it can be knocked loose by hitting it with a hammer.

When installing and disassembling screws, it is necessary to choose a screwdriver that matches the size as much as possible, so that the teeth can be aligned and it is more convenient to use. If the size does not match, then it is likely to cause the deep groove on the screw to be worn, and it is very troublesome to unscrew it later.

Precautions for the use of screws:

It should be noted that the screws must be protected when they are stored, if they are not protected, the screws will oxidize, then they will rust, do not put them in a humid place, rust will affect the use effect.

It is forbidden to do actions that are harmful to the screws, although the screws themselves are relatively hard, and it is not so simple to hurt the screws, but it is still necessary to pay attention to the fact that if the screw teeth are damaged, it is easy to slip the teeth in the process of use.

The above content refers to Encyclopedia - Screws.