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Locking Disc Spring Washer M Shape | Spring Steel Hardened | Zinc-Flake Coated | @Pack of 25 | by Wurth
Locking Disc Spring Washer M Shape is designed for secure screw connections, featuring spring steel hardened construction and a zinc-flake coating for enhanced corrosion resistance. Ideal for mechanical assemblies requiring reliable locking, this washer operates effectively up to 350°C, ensuring durability and performance in industrial applications.
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Product Name/Title: Locking Disc Spring Washer M Shape | Spring Steel Hardened | Zinc-Flake Coated | @Pack of 25 | by Wurth
Brand: Wurth
SKU: 4015
Alternatively Known As: Lock washer, spring lock washer, serrated lock washer, disc spring washer, friction lock washer
Technical Specifications
- Suitable for screw thread: M5
- Internal diameter (d1): 5.1 mm
- Outer diameter (d2): 12.2 mm
- Height (h1): 1.8 mm
- Thickness (s1): 1.2 mm
- Material: Spring steel
- Vickers hardness: 420-510 HV
- Surface finish: Zinc-flake silver coating
- Corrosion protection period: 480 hours
- Locking device operating principle: Serrated lock washer
- Locking function: Embedding locking device
- Temperature resistance: Up to approx. 350°C
- RoHS-compliant: Yes
- Dimensions (H x L x W): 1.8mm x 12.2mm x 12.2mm
- Weight: 0.01 kg
Key Features
- Type M (medium) suitable for screw connections up to strength class 8.8
- Friction locking due to spring force
- Mechanical interlock via specific surface stamping
- Protects counter surface from damage by preventing washer rotation during installation
- Minimal tightening torque distribution
- Reusable and provides twice the security with spring-secured friction fit and positive locking
Professional Installation Requirements
- Installation by a qualified technician or engineer is recommended to ensure proper torque and locking function.
Applications
- Suitable for screw connections of strength class 8.8 with normal head contact
- Used in mechanical assemblies requiring secure locking of screws
- Ideal for applications up to approximately 350°C
- Reusable locking washer for industrial and mechanical use
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Reusable design reduces waste and replacement frequency
- RoHS-compliant material ensures reduced hazardous substances
- Corrosion protection extends product life, reducing environmental impact
Warranty Information
Standard manufacturer warranty applies. Please refer to Wurth warranty policy for details.
Available Now
Available for immediate purchase. Ideal for industrial and mechanical applications requiring secure screw locking.
