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May. 08, 2024
In industrial structures and mechanical assemblies, preventing fasteners from loosening caused by vibration, impact, and continuous operation is a critical engineering challenge.
The DIN 7967 Self-Locking Counter Nut is a specialized locking fastener designed to provide additional security in threaded connections. Unlike conventional nuts that mainly provide clamping force, the self-locking counter nut works as a secondary locking element, preventing the primary nut from rotating during operation.
Also known as:
DIN7967 Lock Nut
Self-Locking Counter Nut
Elastic Lock Nut
Secondary Locking Nut
Anti-Loosening Counter Nut
DIN 7967 self-locking counter nuts are widely used in industries requiring reliable fastening performance, including aerospace, automotive, railway equipment, machinery, construction equipment, and industrial structures.
Juxin Fasteners provides DIN7967 self-locking counter nuts and customized locking fastener solutions for global OEM manufacturers.
For technical support and quotations:
Email: info@juxinfasteners.com
Website: www.juxinfasteners.com
A DIN 7967 Self-Locking Counter Nut is a special elastic locking nut designed to prevent loosening in threaded connections.
Unlike standard hex nuts, it is not normally used as the primary load-bearing fastening component. Instead, it functions as a locking element installed together with a standard nut.
The typical installation method includes:
Install the standard nut onto the bolt and tighten it to the required position.
Install the DIN7967 self-locking counter nut against the standard nut.
Tighten the counter nut approximately 60°–90° to create locking pressure.
The two nuts work together to prevent rotation caused by vibration or external forces.
This double-nut locking structure improves connection reliability in demanding industrial environments.
The anti-loosening performance of the DIN7967 lock nut is based on elastic deformation and increased friction.
The unique spring-like structure of the nut creates continuous elastic pressure after installation.
This pressure maintains contact between:
Bolt threads
Standard nut
Locking nut
The additional force helps prevent unwanted movement during vibration.
During tightening, the elastic locking section creates additional friction between the threaded surfaces.
This increases:
Resistance against rotation
Joint stability
Vibration resistance
Compared with conventional nuts, DIN7967 self-locking nuts provide improved anti-loosening performance without requiring additional locking adhesives.
DIN7967 counter nuts are commonly used as part of a double nut locking system.
The two nuts generate opposite forces:
The first nut provides the main clamping force.
The DIN7967 lock nut creates secondary locking pressure.
This combination significantly improves fastening reliability.
The main advantage of DIN7967 self-locking counter nuts is their ability to maintain fastening performance under:
Mechanical vibration
Shock loads
Continuous movement
Dynamic operating conditions
The unique thin plate forming design makes DIN7967 nuts significantly lighter than conventional locking nuts.
Advantages include:
Weight reduction
Compact installation
Space-saving design
This makes them suitable for applications where weight optimization is important.
Manufactured from spring steel materials, DIN7967 lock nuts maintain excellent elasticity.
Common materials include:
Carbon Steel
Spring Steel
Alloy Steel
Stainless Steel (custom available)
Due to their compact structure, DIN7967 self-locking counter nuts are ideal where installation space is restricted.
Applications include:
Aircraft structures
Mechanical brackets
Thin sheet assemblies
Equipment frames
Typical materials include:
Common material:
60Si2Mn
Features:
High elasticity
Excellent fatigue resistance
Good mechanical strength
Suitable for general industrial applications.
Available for:
Corrosion-resistant environments
Outdoor equipment
Marine applications
DIN7967 lock nuts require precise forming technology to achieve the required elastic locking performance.
Main manufacturing processes include:
Because DIN7967 nuts are manufactured from thin spring steel plates, precision stamping is commonly used.
Process steps:
Material cutting
Progressive stamping
Shape forming
Thread forming
Heat treatment
Surface finishing
Accurate thread processing ensures:
Proper bolt engagement
Stable locking performance
Consistent installation torque
Common sizes include:
M3
M4
M5
M6
M8
M10
M12
Custom sizes are available according to:
Engineering drawings
OEM specifications
Special application requirements
Juxin Fasteners provides multiple surface treatment solutions:
Provides:
Corrosion protection
Cost-effective protection
General industrial suitability
Suitable for higher corrosion resistance requirements.
Benefits:
Improved salt spray resistance
Automotive applications
Outdoor equipment
Used for:
Automotive components
Heavy machinery
High corrosion environments
Available for applications requiring:
High corrosion resistance
Chemical resistance
Marine environments
DIN7967 self-locking counter nuts are suitable for aerospace structures requiring:
Lightweight fastening
Vibration resistance
High reliability
Applications:
Aircraft structures
Support brackets
Mechanical assemblies
Used in vehicle components exposed to vibration and dynamic loads.
Applications:
Chassis systems
Engine components
Suspension systems
Automotive structures
Heavy equipment requires reliable locking solutions.
Applications:
Excavators
Cranes
Forklifts
Industrial vehicles
Suitable for:
Railway structures
Track equipment
Mechanical assemblies
Applications include:
Automation equipment
Machine tools
Industrial frames
Mechanical supports
When selecting the correct DIN7967 locking nut, engineers should consider:
Evaluate:
Temperature
Vibration level
Corrosion exposure
Load conditions
Ensure:
Correct thread size
Correct pitch
Proper material compatibility
Different applications may require:
Standard vibration resistance
High vibration resistance
Corrosion-resistant coating
Aerospace-grade performance
Juxin Fasteners specializes in industrial locking fasteners and OEM fastening solutions for global manufacturers.
Our capabilities include:
✔ DIN and ISO standard fastener production
✔ Custom locking nuts according to drawings
✔ Spring steel stamping technology
✔ Multiple surface treatment options
✔ OEM project support
✔ Export experience for international markets
Our locking fastener products include:
DIN7967 Self-Locking Counter Nuts
Nylon Lock Nuts
Self-Locking Nuts
Metal Lock Nuts
Custom Industrial Fasteners
If you are searching for a reliable DIN7967 Self-Locking Counter Nut Manufacturer or industrial locking fastener supplier, Juxin Fasteners provides professional engineering support and customized production solutions.
Contact us for:
OEM quotation
Custom fastener development
Technical consultation
Bulk production requirements
Email: info@juxinfasteners.com
Website: www.juxinfasteners.com
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