Call Us
+86 136 6007 9809
Call Us
+86 136 6007 9809
May. 12, 2024
In industrial assemblies, vibration, dynamic loads, and repeated movement can gradually loosen conventional nuts, leading to equipment failure, increased maintenance costs, and potential safety risks. DIN 985 Nylon Insert Lock Nuts, also known as DIN985 lock nuts, nyloc nuts, hex nylon lock nuts, or nylon insert hex lock nuts, are specifically designed to eliminate these problems.
At Juxin Fasteners, we manufacture high-quality DIN 985 Hex Nylon Insert Lock Nuts for global OEM manufacturers, industrial equipment builders, automotive suppliers, electrical equipment manufacturers, railway systems, renewable energy projects, and precision machinery industries.
Whether your application requires carbon steel, stainless steel, brass, aluminum, titanium, or customized materials, our engineering team provides reliable fastening solutions that meet demanding industrial environments.
A DIN 985 Nylon Insert Lock Nut is a prevailing torque lock nut featuring a precision-machined hexagonal body with a permanently installed nylon insert at the top.
When the bolt threads engage the nylon ring, the insert deforms elastically and creates continuous friction around the threads. This additional resistance prevents self-loosening caused by:
Continuous vibration
Dynamic mechanical loads
Thermal expansion and contraction
Rotating equipment
Transportation shock
Repeated movement
Unlike chemical thread lockers, DIN985 lock nuts provide reusable mechanical locking without adhesives, making them one of the most widely used self-locking fasteners worldwide.
DIN985 lock nuts are manufactured according to internationally recognized dimensional and mechanical requirements.
Our DIN985 Nylon Lock Nuts can comply with:
DIN 985
ISO 10511
ISO 2320
DIN 982
DIN 6923
ANSI / ASME B18.16.6
IFI Standards
JIS B1181
BS Standards (when applicable)
These standards ensure dimensional consistency, locking performance, mechanical strength, and interchangeability for global industrial applications.
Juxin Fasteners supplies DIN985 Nylon Lock Nuts in a wide range of metric and inch sizes.
M2
M2.5
M3
M4
M5
M6
M8
M10
M12
M14
M16
M18
M20
M22
M24
Custom dimensions are also available upon request.
Selecting the correct material is essential for corrosion resistance, strength, weight, and service life.
Suitable for general industrial fastening applications.
Available grades include:
Class 6
Class 8
Class 10
Class 12
Surface finishes include:
Zinc Plated
Yellow Zinc
Black Zinc
Nickel Plated
Hot-Dip Galvanized
Zinc-Nickel Plating
Geomet®
Dacromet®
Black Oxide
Mechanical Zinc
Ideal for corrosion-resistant environments.
Available grades include:
A2-70 (304 Stainless Steel)
A4-70 (316 Stainless Steel)
A4-80
Common industries include:
Marine equipment
Food processing
Medical equipment
Outdoor installations
Chemical processing
For specialized engineering applications, we also manufacture:
Brass Nylon Lock Nuts
Aluminum Lock Nuts
Titanium Lock Nuts
Copper Alloy Lock Nuts
These materials are widely used in lightweight structures, electrical systems, aerospace components, and corrosion-sensitive environments.
The locking mechanism is simple but highly effective.
As the bolt enters the nut:
The bolt threads contact the nylon insert.
The nylon deforms elastically.
Continuous radial pressure is generated around the threads.
Friction increases significantly.
Rotation resistance prevents loosening during service.
Unlike standard hex nuts, the locking force remains effective even under continuous vibration.
The nylon insert creates prevailing torque that effectively resists vibration-induced loosening.
Perfect for:
Vibrating machinery
Moving equipment
Rotating assemblies
Transportation equipment
The locking force remains stable throughout long service periods, improving operational safety and reducing maintenance requirements.
No special installation tools are required.
DIN985 lock nuts can be installed using standard assembly tools while providing superior locking performance.
Under normal operating conditions, nylon insert lock nuts can be reused several times while maintaining effective locking capability.
Available with numerous protective coatings and stainless steel materials suitable for harsh industrial environments.
Compared with adhesives, lock washers, or complex locking systems, DIN985 lock nuts provide an economical and highly reliable anti-loosening solution.
DIN985 Nylon Lock Nuts are used throughout numerous industries.
Widely applied in:
Vehicle chassis
Automotive seating systems
Sunroof assemblies
Shift mechanisms
Roll bars
Suspension systems
EV battery packs
Interior components
Juxin Fasteners has extensive experience supplying fastening solutions for automotive OEM and Tier suppliers.
Used extensively in:
CNC machinery
Automation equipment
Packaging machines
Textile machinery
Food processing equipment
Agricultural machinery
Ideal for:
Electrical cabinets
Switchgear
Power distribution equipment
Industrial control panels
Communication equipment
Suitable for:
Solar mounting systems
Wind power equipment
Energy storage systems
Battery enclosures
Used for:
Rail vehicle structures
Interior assemblies
Equipment cabinets
Vibration-resistant structural fastening
Applied in:
Diagnostic equipment
Medical devices
Hospital instruments
Precision assemblies
Special material versions such as titanium and aluminum lock nuts are available for lightweight structural fastening applications.
Typical operating temperature for standard nylon insert lock nuts:
-40°C to +120°C
For higher-temperature applications, our engineering team can recommend suitable all-metal prevailing torque lock nuts or customized fastening solutions.
Choosing the correct nylon insert lock nut depends on several engineering factors.
Consider:
Thread size
Bolt grade
Material compatibility
Corrosion resistance
Operating temperature
Required prevailing torque
Vibration level
Environmental conditions
Surface finish
Mechanical strength
Selecting the appropriate combination significantly improves joint reliability and service life.
To achieve optimal locking performance:
Select the correct thread size.
Ensure clean, undamaged bolt threads.
Tighten according to the recommended torque values.
Avoid overtightening.
Replace nuts showing excessive nylon wear.
Inspect fastening systems regularly in high-vibration applications.
Proper installation maximizes locking effectiveness and extends service life.
The nylon insert applies continuous radial pressure against the bolt threads, generating prevailing torque that prevents self-loosening under vibration.
Yes. Under normal operating conditions, they may be reused several times, although repeated installations gradually reduce locking performance. Critical applications should always follow the applicable engineering specifications.
We manufacture DIN985 Nylon Lock Nuts in:
Carbon Steel
Stainless Steel 304
Stainless Steel 316
Brass
Aluminum
Titanium
Custom materials are also available.
Available finishes include:
Zinc Plating
Zinc-Nickel
Nickel Plating
Hot-Dip Galvanizing
Black Oxide
Geomet®
Dacromet®
Mechanical Zinc
Custom coatings
Yes.
Juxin Fasteners provides OEM and custom manufacturing services based on:
Customer drawings
Samples
International standards
Special thread requirements
Custom materials
Special coatings
Non-standard dimensions
Juxin Fasteners is an experienced manufacturer specializing in high-performance industrial fastening solutions for global OEM customers.
We offer:
DIN985 Nylon Insert Lock Nuts
Stainless Steel Lock Nuts
Carbon Steel Lock Nuts
Automotive Fasteners
Precision CNC Machined Fasteners
Weld Nuts
Rivet Nuts
Self-Clinching Fasteners
Threaded Inserts
Custom Fastener Manufacturing
Our products are widely used in automotive, industrial equipment, electronics, renewable energy, railway, medical equipment, aerospace, telecommunications, and heavy machinery industries.
With advanced manufacturing capabilities, strict quality control, and extensive OEM experience, we help engineers and procurement professionals source reliable fastening solutions that meet international quality standards.
If you are searching for a trusted supplier of DIN 985 Nylon Insert Lock Nuts, Hex Nylon Lock Nuts, Nyloc Nuts, or custom industrial fastening solutions, Juxin Fasteners is ready to support your next project.
Our engineering team can provide technical recommendations, custom manufacturing, and competitive OEM quotations based on your drawings or specifications.
Email: info@juxinfasteners.com
MORE NEWS
Contact Us
Tel.:
+86 020 8621 0320
+86 020 3121 6067
E-mail:
Technical Support:
Navigation
SEND INQUIREY