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Locking Disc Spring Washer Z Shape Spring Steel 420-510 HV Zinc-Flake Coated Variant-3 Wurth

BRAND: Wurth
SKU: 401016
$28.70 List price: $36.10
25 PCS ($1.15 per PCS)
+ −
30 Days Return Electricians Unlock Trade Access
Locking Disc Spring Washer Z Shape is crafted from hardened spring steel with a Vickers hardness of 420-510 HV, ensuring exceptional durability.
Technical Specifications
  • Suitable for screw thread: M16
  • Internal diameter (d1): 16.4 mm
  • Outer diameter (d2): 24.6 mm
  • Height (h1): 3.1 mm
  • Thickness (s1): 2.5 mm
  • Material: Spring steel
  • Vickers hardness: 420-510 HV
  • Surface finish: Zinc-flake silver coating
  • Corrosion protection period: 720 hours
  • Form: Z shape
  • Suitable for: Cylinder and hexagon socket screws
  • Locking device operating principle: Serrated lock washer
  • Locking function: Embedding locking device
  • Dimensions (H x L x W): 3.1mm x 24.6mm x 24.6mm
  • Weight: 0.05 kg
Key Features
  • Type Z shape designed for cheese head and hexagon socket screws
  • Spring steel material hardened to 420-510 HV for durability
  • Zinc-flake silver coating provides corrosion protection up to 720 hours
  • Serrated lock washer principle for friction locking via spring force
  • Mechanical interlock through specific surface stamping prevents washer rotation during installation
  • Protects counter surface from damage
  • Minimal tightening torque distribution
Professional Installation Requirements
  • Installation should be performed by qualified personnel to ensure proper torque and locking function.
Applications
  • Suitable for securing cylinder and hexagon socket screws
  • Ideal for use with cheese head and hexagon socket screws
  • Prevents loosening in mechanical assemblies requiring vibration resistance
Standards & Compliance
  • Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
  • RoHS-compliant material ensures reduced hazardous substances
  • Corrosion protection extends product life reducing waste
Warranty Information

Standard manufacturer warranty applies. Please refer to Wurth warranty policy for details.

Available Now

Available for immediate purchase, ideal for mechanical fastening applications requiring secure locking washers.

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