S-90180A678 M20 x 140 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through blue-dyed zinc plating that provides lasting protection in demanding industrial environments
• Optimized thread engagement with Class 6g thread fit ensuring precise mating and vibration resistance in assembled components
• Enhanced installation efficiency featuring external hex drive and standard 30mm head width for quick, secure tool engagement
• Strategic material distribution with partial threading that concentrates strength where needed while reducing overall weight
• Consistent dimensional accuracy maintained through ISO 4014 compliance for reliable interchangeability across global projects
• Environmental responsibility with RoHS 3 and REACH compliance, ensuring safe use in regulated industries worldwide

Professional Applications & Engineering Value

This M20 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where failure is not an option. The Class 10.9 steel construction provides exceptional structural integrity for machinery assembly, construction frameworks, and equipment manufacturing. The blue-dyed zinc plating creates a protective barrier against corrosion in challenging environments, while the metric coarse thread with 2.5mm pitch ensures rapid installation and superior holding power. The partially threaded design concentrates strength at critical stress points, making it ideal for applications requiring precise clamp load distribution. Engineered to ISO 4014 standards (equivalent to DIN 931), these screws guarantee dimensional consistency and reliable performance across global projects, from European machinery to international infrastructure developments.

Specification Summary & Compliance

This high-strength M20x2.5x140mm hex head screw features Class 6g thread fit tolerance for precise mating, partial threading extending 46mm from the tip, and Rockwell C32 hardness for exceptional wear resistance. Manufactured to ISO 4014 specifications with external hex drive compatibility, the fastener ensures global interoperability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and safe usage across regulated industries worldwide.