S-98093A638 M10 x 50 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 thanks to black-phosphate steel coating, extending service life in harsh industrial environments
• Exceptional load-bearing capacity with Class 10.9 strength rating and 150,000 psi tensile strength for demanding applications
• Reliable thread engagement with M10 coarse thread (1.5mm pitch) ensuring quick assembly and vibration resistance
• Enhanced stability and distribution from the integrated flange design, reducing the need for separate washers
• Optimized thread utilization through partial threading (26mm min thread length) for precise clamping force control
• Consistent mechanical properties with Rockwell C32 hardness maintaining structural integrity under stress
• Secure external hex drive allowing high-torque installation with standard tools while preventing stripping

Professional Applications & Engineering Value

This M10 hex head screw delivers critical performance where high-strength fastening meets corrosive challenges. The black-phosphate steel construction provides a protective barrier against oxidation and chemical exposure, making it ideal for outdoor machinery, automotive assemblies, and structural frameworks. Its Class 10.9 rating and 150,000 psi tensile strength ensure it withstands dynamic loads and vibrations in heavy equipment. The coarse metric thread (1.5mm pitch) facilitates rapid installation in both metallic and composite materials, while the flanged design increases bearing surface area to prevent joint loosening. Engineers specify this partially threaded screw for applications requiring precise unthreaded shank sections, such as in pivoting mechanisms or aligned bolted connections.

Specification Summary & Compliance

The screw maintains Class 6g thread fit tolerance per metric standards, ensuring consistent mating with nuts and tapped holes. Manufacturing adheres to ASME B18.2.3.9M dimensional and mechanical specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted hazardous substances. This guarantees suitability for global supply chains and eco-conscious industrial projects.