S-90447A220 M8 x 150 mm DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws
High-Strength Metric Class 10.9 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength with Class 10.9 rating and 150,000 psi capability for reliable performance in high-stress applications
- Superior durability thanks to Rockwell C32 hardness and black steel construction that resists wear and deformation
- Optimized thread design with M8 coarse thread (1.25 mm pitch) and Class 6g fit ensures secure fastening and vibration resistance
- Easy installation and removal with external hex drive and 13 mm head width for standard tool compatibility
- Partial threading configuration provides unthreaded shank section for precise clamping force distribution
- Full regulatory compliance with DIN 931 standards plus RoHS 3 and REACH environmental regulations
- Versatile 150 mm length with 22 mm minimum thread engagement for various material thicknesses
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these M8 hex head screws deliver critical performance where fastener failure is not an option. The Class 10.9 steel construction provides exceptional resistance to tensile and shear forces, making them ideal for heavy machinery, structural steel connections, and automotive assemblies. The partially threaded design with coarse metric thread spacing ensures maximum clamping force while preventing loosening under vibration. With external hex drive compatibility, maintenance teams can achieve proper torque values using standard tools, reducing installation time and ensuring consistent performance. The black steel finish offers basic corrosion resistance while maintaining the mechanical properties required for critical industrial applications.
Specification Summary & Compliance
This metric hex head screw features precise M8 x 1.25 mm threading with Class 6g thread fit tolerance according to ISO standards. The fastener meets DIN 931 specifications for dimensional accuracy and mechanical properties. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. Manufacturing follows strict quality control for consistent tensile strength (150,000 psi) and Rockwell C32 hardness verification.
