How to remove a stripped screw: a complete guide
It often happens, during a repair or disassembly, to find yourself facing a screw with a damaged head. In this case, the screwdriver or Allen key spins freely, and it becomes impossible to unscrew it normally.
This problem is common in mechanics, whether on an electric scooter, a bicycle, a motorcycle, or even furniture.
Fortunately, there are several effective methods for removing a screw with a damaged head, without damaging the surrounding part.
In this guide, you will discover the most effective techniques used by mechanics and DIY enthusiasts.
Why do screws get stripped?
Before discussing solutions, it's helpful to understand why a screw head can get stripped.
The most frequent causes are:
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using the wrong tool
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over-tightening
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a poor quality screw
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corrosion or rust
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repeated disassemblies.
When the head is too worn, the tool can no longer grip the screw correctly.
Method 1: Use a rubber band
This is one of the simplest and sometimes very effective techniques.
How to do it
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place a thick rubber band over the screw head
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insert the screwdriver into the rubber band
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press down firmly
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turn slowly to unscrew.
The rubber band helps to fill the gaps in the stripped head and improves the tool's grip.
Method 2: Use pliers
If the screw head protrudes slightly, it's possible to use slip-joint pliers or locking pliers.
Steps
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firmly grip the screw head with the pliers
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maintain constant pressure
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turn slowly to unscrew.
This technique works particularly well when the screw is accessible and slightly protrudes from the surface.
Method 3: Create a new drive
If the screw head is very damaged, it's possible to create a new drive.
How to do it
Using a tool such as:
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a mini grinder
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a Dremel
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a small saw.
Simply create a straight groove in the screw head to then use a flathead screwdriver.
Method 4: Use a screw extractor
This is the most professional solution.
A screw extractor is a tool specially designed to remove screws with stripped heads.
How it works
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slightly drill into the center of the screw
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insert the extractor into the hole
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turn counter-clockwise to unscrew.
The extractor will grip the screw and allow you to gradually remove it.
Method 5: Drill out the screw
If none of the previous methods work, there is a more radical solution: drilling out the screw.
Steps
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use a metal drill bit
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drill into the center of the screw head
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remove the screw head.
Once the head is removed, the part will be freed, and the rest of the screw can be removed with pliers.
How to avoid damaging a screw
To avoid this type of problem in the future, some good practices can be helpful.
Use the right tool
Always use the correct size screwdriver or Allen key.
Apply sufficient pressure
It's important to press firmly to prevent the tool from slipping.
Use penetrating oil
If the screw is stuck due to rust or corrosion, a penetrating oil can facilitate removal.
Do not force it
If a screw resists, it's better to try another technique rather than continuing to force it.
Conclusion
A screw with a stripped head can seem difficult to remove, but several techniques can solve this problem:
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use a rubber band
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use pliers
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create a new drive
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use a screw extractor
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drill out the screw.
With the right tools and a bit of method, it is generally possible to remove the screw without damaging the part.
