S-90447A113 M16 x 145 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 and compliant surface treatment for extended service life in harsh environments
• Optimized installation efficiency with external hex drive and 24mm head width enabling secure tool engagement and high torque application
• Precise thread engagement with Class 6g thread fit and M16x2mm coarse spacing ensuring consistent clamping force and vibration resistance
• Versatile partial threading design combining 38mm minimum threaded section with 145mm total length for flexible joint configurations
• Enhanced durability with Rockwell C32 hardness providing excellent wear resistance and deformation prevention
• Global compliance assurance meeting DIN 931 specifications along with RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This M16 hex head screw delivers critical engineering solutions for industrial applications where high tensile strength and reliable fastening are paramount. The Class 10.9 steel construction provides exceptional structural integrity for heavy machinery, construction frameworks, and equipment assembly, resisting dynamic loads and vibration-induced loosening. The partially threaded design allows for precise clamp load distribution, while the coarse metric threading ensures rapid installation in various materials. With external hex drive compatibility, maintenance teams can achieve proper torque values efficiently. The black finish enhances corrosion protection in manufacturing environments, making these DIN 931 fasteners ideal for automotive, industrial machinery, and structural applications demanding certified performance.

Specification Summary & Compliance

Manufactured to DIN 931 specifications with Class 6g thread fit tolerance for precise engagement. The metric coarse thread (M16x2mm) follows standardized spacing, while the partially threaded design provides 38mm minimum thread length within the 145mm total dimension. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across industrial sectors. The Class 10.9 strength rating corresponds to 150,000 psi tensile strength and Rockwell C32 hardness, meeting international quality standards for heavy-duty fastening applications.