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M12 Serrated Lock Washer | Spring Steel | Corrosion Protection | by Wurth

BRAND: Wurth
SKU: 40112
$25.10 List price: $31.60
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The M12 Serrated Lock Washer is crafted from high-strength spring steel, designed to provide a reliable locking function for mechanical assemblies. With a flake zinc silver surface offering corrosion protection for up to 720 hours, this washer is perfect for automotive and industrial applications, ensuring secure fastening even in high-vibration environments.

Product Name/Title: M12 Serrated Lock Washer | Spring Steel | Corrosion Protection | by Wurth

Brand: Wurth

SKU: 40112

Alternatively Known As: M12 Lock Washer, Serrated Lock Washer, Spring Steel Lock Washer, Embedding Lock Washer

Technical Specifications
  • Suitable for screw thread: M12
  • Internal diameter (d1): 12.4 mm
  • Outer diameter (d2): 27.25 mm
  • Height (h1): 2.85 mm
  • Thickness (s1): 1.8 mm
  • Material: Spring steel
  • Min./max. Vickers hardness, HV: 420-510 HV
  • Surface: Flake zinc silver
  • RoHS-compliant: Yes
  • Corrosion protection period: 720 h
  • Form: M
  • Locking device operating principle: Serrated lock washer
  • Locking function: Embedding locking device
  • Dimensions (H x L x W): 3mm x 27mm x 27mm
  • Weight: 0.1 kg
Key Features
  • Made from spring steel for high strength and durability
  • Serrated lock washer design provides embedding locking function
  • Flake zinc silver surface for corrosion protection up to 720 hours
  • RoHS-compliant ensuring environmental safety
  • Suitable for M12 screw threads
Professional Installation Requirements
  • Installation by a qualified technician or engineer is recommended to ensure proper fastening and locking performance.
Applications
  • Securing bolts and screws in mechanical assemblies
  • Preventing loosening due to vibration in automotive and industrial equipment
  • General fastening applications requiring locking washers
Standards & Compliance
  • Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
  • RoHS-compliant material reduces hazardous substances
  • Long corrosion protection life reduces replacement frequency and waste
Warranty Information

Standard manufacturer warranty against defects applies.

Available Now

The Wurth 40112 M12 Serrated Lock Washer is available for immediate purchase, ideal for industrial, automotive, and mechanical fastening applications.