S-94863A205 M8 x 20 mm ISO 4017, DIN 933 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 load-bearing capacity with Class 10.9 strength grade, supporting up to 150,000 PSI tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through specialized black coating, extending service life in harsh industrial environments
- Optimized torque transmission with external hex drive and 13mm head width, ensuring secure installation and removal with standard tools
- Enhanced thread engagement with Class 6h thread fit and coarse 1.25mm pitch, providing faster assembly and reduced cross-threading risk
- Maximum fastening coverage through full threading along the 20mm length, offering consistent holding power across the entire fastener
- Proven material durability with Rockwell C32 hardness, maintaining structural integrity under vibration and heavy loads
- Global compatibility with metric M8 sizing, ensuring interchangeability with international equipment and components
Professional Applications & Engineering Value
This M8 hex head screw delivers critical engineering solutions for industrial assembly challenges where high tensile strength and corrosion resistance are paramount. The Class 10.9 steel construction with Rockwell C32 hardness provides exceptional resistance to shear forces and fatigue in heavy machinery, automotive systems, and structural frameworks. The fully threaded design with coarse 1.25mm pitch enables rapid installation in production environments while the corrosion-resistant black coating protects against degradation in outdoor or chemically exposed settings. The external hex drive configuration ensures reliable torque application with standard wrenches, making these metric steel screws ideal for maintenance operations and OEM manufacturing where consistent fastening performance is essential.
Specification Summary & Compliance
Manufactured to ISO 4017/DIN 933 standards with Class 6h thread fit precision and M8x1.25mm coarse threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features right-hand thread direction and 20mm length with fully threaded configuration. The Class 10.9 strength grade corresponds to 150,000 PSI tensile strength with Rockwell C32 hardness certification.
