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Hexalobular-Type Cheese Head Screw M4 Size Zinc Nickel Coated Wurth

BRAND: Wurth
SKU: 40006425
$41.80 List price: $52.60
25 PCS ($1.67 per PCS)
+ −
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Hexalobular-Type Cheese Head Screws are designed for reliable fastening in industrial and automotive applications
Technical Specifications
  • Thread type: Metric thread M4 with 0.7 mm pitch
  • Length: 25 mm
  • Head diameter: 7 mm
  • Head height: 3.1 mm
  • Material: Steel
  • Property class: 8.8
  • Surface finish: Zinc nickel black coating (ZNBHL)
  • Corrosion protection period: 480 hours
  • Drive type: Internal hexalobular (TX20)
  • Thread design: Full thread
  • RoHS-compliant: Yes
  • Standard: ISO 14580
  • Dimensions (H x L x W): 3.1mm x 25mm x 7mm
  • Weight: 0.02 kg
Key Features
  • Galvanised chromium (VI)-free zinc-nickel black coating for high corrosion resistance
  • Corrosion resistance up to 480 hours for M4 diameter screws according to DIN EN ISO 9227 NSS
  • Decorative black finish with integrated lubricating particles in top coat
  • Thermal capacity up to 120°C
  • Adjusted friction coefficient range from 0.09μ to 0.14μ
  • Full metric thread with internal hexalobular (TX20) drive
  • Socket low head design for compact fastening
Professional Installation Requirements
  • Installation by qualified personnel using appropriate hexalobular (Torx) drivers is recommended to ensure proper fastening and avoid damage.
Applications
  • Mechanical assembly requiring corrosion-resistant fasteners
  • Industrial and automotive applications with high corrosion risk
  • General fastening in environments exposed to moisture or salt spray
Standards & Compliance
  • Complies with AS/NZS 4789 for fasteners and corrosion resistance
Environmental Benefits
  • Chromium (VI)-free coating reduces environmental and health hazards
  • Durable corrosion protection extends product life, reducing waste
Warranty Information

Warranty against manufacturing defects as per Wurth standard terms and conditions.

Available Now

Wurth Hexalobular-Type Cheese Head Low Head Screws M4 x 25mm - 25 PCS are available for immediate purchase, ideal for industrial, automotive, and mechanical fastening applications requiring corrosion resistance.

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