S-90373A105 M8 x 35 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws
Extreme-Strength Metric Class12.9 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
- Maximum load-bearing capacity with Class 12.9 steel construction, delivering 170,000 psi tensile strength for critical structural applications
- Superior wear resistance from Rockwell C39 hardness, ensuring extended service life in high-vibration environments
- Optimized thread engagement through M8 coarse pitch (1.25mm) design, providing faster installation and enhanced resistance to loosening
- Precise torque transmission via external hex drive and 13mm head width, enabling secure fastening with standard tools
- Full-length threading for consistent clamping force distribution across the entire 35mm length
- Guanteed dimensional accuracy with Class 6g thread fit, ensuring reliable interchangeability in metric assemblies
- Regulatory compliance assurance meeting international ISO 4017/DIN 933 specifications and environmental standards
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Class 12.9 hex head screws deliver exceptional performance in heavy machinery, automotive assemblies, and structural frameworks. The high-tensile steel construction combined with fully threaded M8 coarse pitch design addresses critical challenges of vibration-induced loosening and dynamic load distribution. The external hex drive configuration provides reliable torque transmission for high-clamp force requirements, while the precise Class 6g thread fit ensures consistent performance in metric fastening systems. These industrial-grade fasteners maintain integrity under extreme stress conditions, making them ideal for applications where failure is not an option.
Specification Summary & Compliance
Manufactured to ISO 4017 and DIN 933 standards with Class 6g thread tolerance for metric applications. The M8 x 1.25mm coarse thread configuration ensures proper engagement in various materials. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 35mm length and fully threaded design provide consistent performance across the fastener's entire engagement area.
