Trade Discount 21%
Locking Disc Spring Washer M | Spring Steel Hardened | Zinc-Flake Coated | @Pack of 25 | by Wurth
Locking Disc Spring Washer M is designed for secure screw connections, featuring a spring steel hardened construction and a zinc-flake coating for corrosion protection up to 480 hours. Ideal for high-temperature applications up to 350°C, this reusable washer ensures reliable locking in mechanical assemblies, making it perfect for industrial use.
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Product Name/Title: Locking Disc Spring Washer M | Spring Steel Hardened | Zinc-Flake Coated | @Pack of 25 | by Wurth
Brand: Wurth
SKU: 4018
Alternatively Known As: Lock washer, Spring lock washer, Serrated lock washer, Disc spring washer, Locking washer M8
Technical Specifications
- Suitable for screw thread: M8
- Internal diameter (d1): 8.2 mm
- Outer diameter (d2): 18.2 mm
- Height (h1): 2.4 mm
- Thickness (s1): 1.4 mm
- Material: Spring steel
- Vickers hardness: 420-510 HV10
- Surface finish: Zinc-flake silver coating
- RoHS-compliant: Yes
- Corrosion protection period: 480 hours
- Form: M
- Locking device operating principle: Serrated lock washer
- Locking function: Embedding locking device
- Temperature range: Up to approx. 350°C
- Reusable: Yes
- Dimensions (H x L x W): 2.4mm x 18.2mm x 18.2mm
- Weight: 0.02 kg
Key Features
- Type M (medium) locking disc spring washer
- 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
- Zinc-flake silver coating for corrosion protection up to 480 hours
- Reusable and suitable for high temperature applications
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
- Corrosion-resistant zinc-flake coating extends product life and reduces environmental impact
Warranty Information
Standard manufacturer warranty applies. Please refer to Wurth warranty policy for details.
Available Now
The Wurth Locking Disc Spring Washer M is available for immediate purchase, ideal for industrial and mechanical fastening applications requiring secure screw locking.
