S-98093A562 M8 x 45 mm ASME B18.2.3.9M, SAE J1199 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-phosphate steel coating that extends service life in demanding industrial environments
• Exceptional load-bearing capacity with Class 10.9 strength rating and 150,000 psi tensile strength for heavy-duty applications
• Enhanced stability and distribution through integrated flange design that eliminates need for separate washers
• Reliable thread engagement with Class 6g thread fit ensuring precise mating with nuts and threaded components
• Optimized installation efficiency featuring external hex drive and coarse threading for faster assembly in production environments
• Reduced material stress through partial threading design that maintains shank strength in high-vibration applications
• Global compliance assurance meeting ASME B18.2.3.9M standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M8 hex head screw delivers critical engineering solutions for industrial equipment, machinery assembly, and structural applications where vibration resistance and long-term reliability are paramount. The black-phosphate steel construction provides superior corrosion protection in harsh operating conditions, while the Class 10.9 strength rating ensures dependable performance under extreme mechanical loads. The flanged design offers integrated load distribution, eliminating washer requirements and reducing assembly components. With coarse metric threading (M8 x 1.25mm) and partial threading configuration, this fastener maintains optimal clamp force in high-vibration environments common in automotive, construction, and heavy equipment applications. The external hex drive enables efficient installation with standard tools, streamlining production processes while meeting rigorous ASME B18.2.3.9M specifications.

Specification Summary & Compliance

This metric hex head screw features M8 x 1.25mm coarse threading with Class 6g thread fit tolerance, ensuring precise dimensional accuracy per international metric standards. The fastener maintains Rockwell C32 hardness and delivers 150,000 psi tensile strength, manufactured to ASME B18.2.3.9M mechanical specifications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to global substance restriction requirements for industrial components.