What glue should I use to prevent a screw from unscrewing?
When a screw, bolt or nut is subjected to vibrations, shocks or repeated stress, mechanical tightening alone may sometimes not be enough.
The appropriate solution is then a threadlocker, specially designed to secure threaded assemblies and limit their unintentional loosening.
For this type of application, the THREADLOCKER by Colle21 – ein-filet professionnel 50 ml, integrated into the range SUPER GLUE Colle21, is designed to stabilize screws, bolts and nuts subjected in particular to vibrations and shocks.
👉 Discover THREADLOCKER by Colle21 – 50ml
Why does a screw unscrew by itself?
What glue should I use to prevent a screw from unscrewing? A properly tightened screw can gradually loosen when exposed to:
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vibrations;
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repeated shocks;
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mechanical movements;
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load variations;
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regular requests.
This phenomenon is common in mechanics, RC model making, DIY, automotive, industrial machines and equipment.
A thread locker adds additional security to the thread in order to keep the assembly more stable over time.
What is a thread locker?
A threadlocker is a product intended for assemblies comprising a screw, a bolt or a nut.
Unlike a classic glue applied between two surfaces, it is used directly on the thread before tightening.
The THREADLOCKER by Colle21 is designed to prevent accidental loosening of threaded assemblies and resist vibration and shock. Its 50 ml bottle also has a tip allowing precise application.
How to prevent a screw from unscrewing with THREADLOCKER by Colle21 ?
What glue should I use to prevent a screw from unscrewing?
Use is simple.
1. Clean the thread
The screw, bolt and nut must be clean and dry.
2. Apply a small amount of THREADLOCKER by Colle21
Place the product directly on the thread.
3. Assemble the parts normally
Screw then carry out the usual tightening.
4. Let the product harden
Avoid immediately stressing the assembly to allow the threadlocker to perform its function correctly.
👉 To remember:
clean → apply → screw → tighten → let harden
Why use a threadlocker rather than just tightening more?
Tightening a screw more tightly is not always the best solution.
Excessive tightening can:
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damage the thread;
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damage the screw head;
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deform certain parts;
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complicate future dismantling;
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do not prevent loosening caused by vibration.
The thread lock acts directly on the thread and makes it possible to secure the assembly without relying solely on an increase in tightening torque.
In which areas to use THREADLOCKER by Colle21 ?
What glue should I use to prevent a screw from unscrewing? The THREADLOCKER by Colle21 is particularly suitable for mechanical assemblies subject to vibrations or repeated movements.
It can be used in particular for:
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RC modeling;
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radio-controlled cars;
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drones and miniature equipment;
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DIY;
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mechanical repairs;
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machines;
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industrial equipment;
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assemblies comprising screws, nuts and bolts.
The official file Colle21 recommends it in particular for model making, DIY and industrial applications.
Threadlocker or self-locking nut?
Both solutions serve to limit loosening, but their operation is different.
A self-locking nut uses a mechanical system, often with a specific ring.
A threadlocker is applied directly to the thread and can be particularly practical when:
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the available space is reduced;
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the nut used is standard;
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the assembly undergoes vibrations;
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we want to secure an existing fixing.
The choice therefore depends on the assembly and mechanical constraints.
Mistakes to avoid
To obtain an effective result, avoid:
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apply the product to dirty or greasy threads;
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use an excessive amount;
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to immediately request assembly;
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to overtighten the screw thinking of improving the fixation;
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to use a threadlocker like a classic glue between two surfaces;
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neglect the safety instructions indicated on the product.
The THREADLOCKER by Colle21 must be applied directly onto clean, dry threads before assembly.
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This feedback also allows us to continue to develop a range that meets different expectations: precision, speed, transparency, viscosity, flexibility and ease of use.
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SUPER GLUE COLLE21: manufacturer of cyano glues and partner of professionals
Since 2012, SUPER GLUE COLLE21 develops and distributes a complete range of cyanoacrylate glues and professional adhesive solutions, intended for both individuals and professionals.
With more than 140 references, our range meets many applications: different viscosities of cyanoacrylates, flexible glues, gels, activators, primers and specialized bonding solutions.
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FAQ – What glue should I use to prevent a screw from unscrewing?
What product should I use to prevent a screw from unscrewing?
A threadlocker is specifically designed to limit the loosening of a screw, bolt or nut subject in particular to vibrations.
What is THREADLOCKER by used for? Colle21 ?
It makes it possible to secure threaded assemblies and limit involuntary loosening caused in particular by vibrations and shocks.
Where should thread locker be applied?
Directly on the clean and dry thread screw or bolt before assembly.
Do you need to apply a lot of product?
No. A small amount properly distributed over the thread is best.
Can we use a thread lock in model making?
Yes. The THREADLOCKER by Colle21 is particularly intended for model making and makes it possible to secure small threaded parts exposed to vibrations.
Can we use regular SUPER GLUE instead?
A classic SUPER GLUE and a threadlocker do not have exactly the same function. To prevent a screw from loosening, it is best to use a product specifically designed for them. threaded joints.
Conclusion
So, what glue to use to prevent a screw from unscrewing?
The most suitable solution is a threadlocker like the THREADLOCKER by Colle21 – 50ml, specially designed to secure screws, nuts and bolts subject to vibrations and shocks.
Above all, remember:
clean and dry thread → small amount of thread lock → assembly → tightening → hardening
With more than 140 references, SUPER GLUE Colle21 offers a complete range of solutions to meet both bonding needs and technical assemblies.
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