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Countersunk Screw ISO 14581 | Hexalobular TX20 Drive | Blue Passivated Zinc Plated | @Pack of 100 | by Wurth

BRAND: Wurth
SKU: 40231445
$46.00 List price: $57.80
100 PCS ($0.46 per PCS)
+
Countersunk screws ISO 14581 with a hexalobular TX20 drive and blue passivated zinc plating are perfect for mechanical assembly and industrial applications. Designed for secure fastening, these screws ensure optimal force distribution, reducing tool wear and preventing surface damage during installation. Ideal for automotive, aerospace, and general engineering projects, they comply with international standards for reliability.

Product Name/Title: Countersunk Screw ISO 14581 | Hexalobular TX20 Drive | Blue Passivated Zinc Plated | @Pack of 100 | by Wurth

Brand: Wurth

SKU: 40231445

Alternatively Known As: Hexalobular countersunk screw, TX20 countersunk screw, ISO 14581 screw, Zinc plated countersunk screw, Metric thread countersunk screw

Technical Specifications
  • Thread type x nominal diameter (d1): M4
  • Length (l1): 45 mm
  • Head diameter (dk): 8.4 mm
  • Head height (k1): 2.7 mm
  • Standards: ISO 14581
  • Material: Steel
  • Property class: 8.8
  • Surface: Zinc plated
  • RoHS-compliant: Yes
  • Head type: Countersunk head
  • Drive type: Internal hexalobular
  • Internal drive: TX20
  • Thread type: Metric thread
  • Pitch: 0.7 mm
  • Thread form: Standard metric thread
  • Product class: A
  • Dimensions (H x L x W): 2.7mm x 45mm x 8.4mm
  • Weight: 0.02 kg
Key Features
  • Hexalobular (TX) drive transmits force over a large surface area across the flanks of the drive, reducing tool wear.
  • Tool does not slip due to optimal force distribution.
  • No damage to surface coating during installation.
  • No wobbling; screw locates securely.
  • Complies with DIN EN ISO 10664 for hexalobular drives.
  • Standardized connection elements usable worldwide.
Professional Installation Requirements
  • Installation by a qualified technician or tradesperson is recommended to ensure proper torque and secure fastening.
Applications
  • Mechanical assembly requiring secure fastening
  • Industrial machinery and equipment
  • Automotive and aerospace components
  • General engineering and construction
Standards & Compliance
  • AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
  • RoHS-compliant material reduces hazardous substances.
  • Durable zinc plating extends product life, reducing waste.
Warranty Information

Wurth standard warranty against manufacturing defects applies.

Available Now

Available for immediate purchase, ideal for industrial and mechanical assembly applications.