Wedge lock washer Nord-Lock, narrow shape (NL)
Steel Delta Protekt narrow shape NL Nord-Lock
WSH-WDGELOK-NL-(DPT)-3
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General:
Original Nord-Lock wedge lock washers secure screw connections that are subject to severe vibrations and dynamic loads.
Corrosion resistance:
High level of corrosion resistance (at least 1,000 hours in salt spray test in accordance with ISO 9227)
Function:
Highly secure locking as wedge surfaces slope up between the two lock washers. The screw connection is locked by pretension instead of by friction.
Advantages:
- Quick and easy installation/removal with standard tools
- Secure locking even with lubrication
- Reliable securing - even for screw connections with short clamping lengths
- Reusable (depending on operating environment)
- CE marking
- Laser marking for continuous traceability
- Designed for screws up to and including strength class 12.9 (steel) and A4-80 (high-grade steel)
Certificates and approvals:
- DIBt (Deutsches Institut für Bautechnik - German Institute for Construction Technology)
- DNV GL (Det Norske Veritas Germanischer Lloyd)
- EBA (Eisenbahn-Bundesamt - German Federal Railway Authority)
- TÜV (Technischer Überwachungs-Verein - German Technical Inspection Association)
- LR (Lloyd's Register)
Note:
For the recommended tightening torques, please see the technical information from the manufacturer.
Datasheets(X)
Vehicle manufacturing, mechanical engineering, manufacturers of pneumatic and power tools, mining, agricultural machine manufacturing, manufacturers of mixing systems, transport and conveyor systems.
 | |
Internal diameter (d1) | 3.4 mm |
Suitable for screw thread | M3 |
Outer diameter (d2) | 7 mm |
Thickness (h1) | 1.8 mm |
Material | Steel |
Surface | Flake zinc silver |
Corrosion protection period | 1000 h |
RoHS-compliant | Yes |
Design | Narrow |
Locking device operating principle | 0 - not applicable |
Locking function | Locking against self-loosening by mechanical interlocking |
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