Nyloc Nut
Prevailing-torque hexagon nut with a nylon PA66 insert that creates friction-based locking resistance. Manufactured to DIN 985 (ISO 10511) or DIN 982 (ISO 7040), providing vibration-resistant fastening without separate lock washers.
Specification
#
Standard
DIN 985 / ISO 10511 (thin/low profile); DIN 982 / ISO 7040 (standard height)
Material
Carbon Steel (body), Nylon PA66 or PA6 (insert)
Surface Finish
Zinc Plated, Plain, Hot-Dip Galvanized, Dacromet
Thread Type
Metric Coarse (standard), UNC (inch series per ASME B18.16.6)
Drive Type
Hexagon (wrench/spanner/socket)
Head Type
Hexagon with nylon insert (thin DIN 985 or standard DIN 982)
Grade
Class 8, 10 (steel body per ISO 898-2); A2-70, A4-70 (stainless per ISO 3506-2)
Thread
Coarse (standard)
Coating
Zinc plated
Stock
In stock
Dimension
#
Size
Thread Dia (min-max mm)
Pitch
Height (mm)
M5
4.83-5.00
0.8
5
M6
5.79-6.00
1.0
6
M8
7.76-8.00
1.25
8
M10
9.74-10.00
1.5
10
M12
11.71-12.00
1.75
12
- All dimensions in mm, tolerance +/- 0.01 mm. Additional dimensions available on request.
Benefits
#
Nyloc nuts solve the persistent engineering problem of fastener loosening under vibration and dynamic loading. The nylon PA66 insert deforms elastically around the bolt thread during installation, generating a prevailing torque that maintains clamping force without supplementary lock washers or thread-locking adhesives. This reduces part count, assembly time, and inventory complexity in production environments. The friction-based locking mechanism does not damage bolt threads, allowing a limited number of reuse cycles while maintaining effective resistance. For automotive, machinery, and appliance applications operating below 120°C, nyloc nuts provide reliable vibration resistance at lower installed cost than mechanical wedge-locking systems or structural adhesives. Available in Class 8 and 10 steel grades as well as A2 and A4 stainless steel, they cover a broad range of strength and corrosion resistance requirements in moderate-temperature service.
Common Applications
#
Nyloc nuts are specified wherever vibration-induced loosening threatens joint integrity in moderate-temperature environments.
- Automotive suspension, chassis, and body assemblies
- Electric motor mounting and appliance assembly
- General machinery with rotating or vibrating components
- Bicycle and motorcycle component fastening
- Agricultural equipment and implements
- Conveyor systems and material handling equipment
- HVAC fan and blower assemblies
- Robotics and automation equipment
- Pump and compressor mounting
- Drum kits and musical instrument hardware
Read Me
| Standard | DIN 985 / ISO 10511 (thin/low profile); DIN 982 / ISO 7040 (standard height) |
| Material | Carbon Steel (body), Nylon PA66 or PA6 (insert) |
| Surface Finish | Zinc Plated, Plain, Hot-Dip Galvanized, Dacromet |
| Thread Type | Metric Coarse (standard), UNC (inch series per ASME B18.16.6) |
| Drive Type | Hexagon (wrench/spanner/socket) |
| Head Type | Hexagon with nylon insert (thin DIN 985 or standard DIN 982) |
| Grade | Class 8, 10 (steel body per ISO 898-2); A2-70, A4-70 (stainless per ISO 3506-2) |
| Thread | Coarse (standard) |
| Coating | Zinc plated |
| Stock | In stock |
| Size | Thread Dia (min-max mm) | Pitch | Height (mm) |
|---|---|---|---|
| M5 | 4.83-5.00 | 0.8 | 5 |
| M6 | 5.79-6.00 | 1.0 | 6 |
| M8 | 7.76-8.00 | 1.25 | 8 |
| M10 | 9.74-10.00 | 1.5 | 10 |
| M12 | 11.71-12.00 | 1.75 | 12 |
