S-90373A111 M10 x 20 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capability with Class 12.9 strength grade, supporting up to 170,000 psi tensile strength for critical structural applications
• Superior wear resistance thanks to Rockwell C39 hardness, ensuring extended service life in high-stress environments
• Precise thread engagement with Class 6g thread fit and coarse pitch design for faster assembly and reduced cross-threading risks
• Optimal torque transmission through external hex drive and standard 17mm head width for secure tightening with common tools
• Full thread coverage along the 20mm length provides consistent clamping force across the entire fastener
• Global compliance assurance meeting ISO 4017 DIN 933 specifications for reliable international project compatibility
• Environmental regulation compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These M10 hex head screws deliver exceptional engineering value in demanding industrial applications where failure is not an option. The Class 12.9 steel construction provides superior resistance to vibration loosening and fatigue, making them ideal for heavy machinery, automotive assemblies, and structural frameworks. The fully threaded design with coarse pitch ensures rapid installation while maintaining consistent clamping pressure across the entire 20mm length. The external hex drive allows for high torque application without stripping, while the right-hand thread configuration follows industry standards for predictable assembly. These metric hex bolts solve critical fastening challenges where both strength and precision are paramount, reducing maintenance downtime and preventing costly equipment failures.

Specification Summary & Compliance

This M10x1.5x20mm hex head screw features precise Class 6g thread fit tolerance according to metric standards, ensuring consistent performance across applications. Manufactured to ISO 4017 DIN 933 specifications for dimensional accuracy and mechanical properties. The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and international markets. The combination of 170,000 psi tensile strength and Rockwell C39 hardness validates its classification as a Class 12.9 high-strength fastener for critical engineering applications.