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Countersunk Head Screw ISO 10642 | Steel 10.9 | Zinc-Nickel Coating | Black Finish | @Pack of 25 | by Wurth

BRAND: Wurth
SKU: 4123640412
$7.90 List price: $10.00
25 PCS ($0.32 per PCS)
+
Countersunk head screws ISO 10642 made from high-strength steel 10.9 with a zinc-nickel coating for superior corrosion resistance. Ideal for mechanical assemblies and automotive applications, these screws ensure flush mounting and are designed for environments prone to corrosion. With a corrosion protection period of up to 480 hours, they are perfect for precision equipment assembly and industrial use.

Product Name/Title: Countersunk Head Screw ISO 10642 | Steel 10.9 | Zinc-Nickel Coating | Black Finish | @Pack of 25 | by Wurth

Brand: Wurth

SKU: 4123640412

Alternatively Known As: Hex Socket Countersunk Screw, ISO 10642 Screw, Zinc-Nickel Plated Countersunk Screw, High Strength Countersunk Screw

Technical Specifications
  • Thread type x nominal diameter: M4
  • Length: 12 mm
  • Head diameter: 7.96 mm
  • Head height: 2.48 mm
  • Internal drive: Hexagon socket HS2.5
  • Standards: ISO 10642
  • Material: Steel
  • Property class: 10.9
  • Surface finish: Zinc nickel black coating
  • Corrosion protection period: 480 hours
  • RoHS-compliant: Yes
  • Head type: Countersunk head
  • Drive type: Hexagon socket
  • Thread type: Metric thread
  • Thread form: Standard metric thread
  • Thread design: Full thread
  • Product class: A
  • Dimensions (H x L x W): 2.48mm x 12mm x 7.96mm
  • Weight: 0.02 kg
Key Features
  • Zinc-nickel black coating (ZNBHL) providing high corrosion resistance
  • Chromium (VI)-free coating for environmental safety
  • Corrosion resistance up to 480 hours for M4 diameter screws
  • Adjusted friction coefficient range of 0.09 μ–0.14 μ due to integrated lubricating particles
  • Thermal capacity up to 120°C
  • Full metric thread with hexagon socket drive
  • Countersunk head design for flush mounting
Professional Installation Requirements
  • Installation by qualified personnel recommended to ensure correct torque and fastening integrity.
Applications
  • Mechanical assemblies requiring high strength fasteners
  • Corrosion-prone environments needing zinc-nickel coated screws
  • Industrial and automotive fastening applications
  • Precision equipment assembly with countersunk head requirements
Standards & Compliance
  • Complies with AS/NZS 4789 for fasteners and corrosion resistance standards
Environmental Benefits
  • Chromium (VI)-free coating reduces environmental and health hazards
  • RoHS-compliant material ensures reduced toxic substance usage
Warranty Information

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

Available Now

Available for immediate purchase, ideal for industrial, automotive, and mechanical fastening applications requiring corrosion-resistant high-strength screws.