S-90447A123 M16 x 230 mm 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 black steel construction, extending service life in demanding industrial environments
• Optimized thread engagement with M16 coarse thread and 2mm pitch design for faster installation and reduced cross-threading risk
• Enhanced torque transmission via 24mm external hex head design, providing secure tool engagement during installation
• Precision thread control with Class 6g fit and 38mm minimum thread length ensuring consistent, reliable fastening performance
• Reduced assembly time through partially threaded design that minimizes unnecessary threading in non-critical sections
• Regulatory compliance assurance meeting DIN 931 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M16 hex head screw delivers critical engineering solutions for heavy-duty applications where vibration resistance and structural integrity are paramount. The Class 10.9 steel construction with Rockwell C32 hardness provides exceptional fatigue resistance in construction, machinery assembly, and structural steel connections. The metric coarse thread with 2mm pitch ensures rapid installation while maintaining holding power in steel-to-steel applications. The partially threaded design concentrates the thread engagement where needed most, preventing unnecessary friction in non-critical sections. With external hex drive compatibility, technicians can achieve proper torque values using standard tools, making this DIN 931 compliant fastener ideal for maintenance, manufacturing, and infrastructure projects requiring reliable, high-strength connections.

Specification Summary & Compliance

This hex head screw features precision metric threading with M16 diameter, 2mm pitch, and Class 6g thread fit tolerance per ISO standards. Manufacturing follows DIN 931 specifications for dimensional accuracy and mechanical properties. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. With 150,000 psi tensile strength and Rockwell C32 hardness, this partially threaded screw meets the rigorous demands of industrial applications while maintaining consistent performance across temperature variations and dynamic loading conditions.