S-91310A122 M5 x 12 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
- Superior load-bearing capacity with Class 10.9 strength grade and 150,000 psi tensile strength for critical structural applications
- Exceptional wear resistance thanks to Rockwell C32 hardness and steel construction for extended service life
- Optimized installation efficiency with external hex drive design and coarse 0.8mm thread pitch for faster assembly
- Reliable thread engagement with Class 6g thread fit ensuring consistent performance in vibration-prone environments
- Full-threaded design provides maximum grip length and uniform stress distribution across the entire fastener
- Comprehensive regulatory compliance meeting ISO 4017/DIN 933 standards plus RoHS 3 and REACH environmental directives
- Corrosion-resistant black finish enhances durability while maintaining professional appearance in industrial settings
Professional Applications & Engineering Value
These M5 hex head screws deliver exceptional engineering value in demanding industrial applications where high tensile strength and reliability are paramount. The Class 10.9 steel construction with Rockwell C32 hardness provides superior resistance to shear forces and fatigue, making them ideal for heavy machinery, automotive assemblies, and structural frameworks. The coarse metric thread with 0.8mm pitch ensures rapid installation and secure fastening in materials where fine threads might strip or fail. The fully threaded design maximizes contact surface area, distributing stress evenly to prevent point failures. With external hex drive compatibility, these screws accommodate standard tools for efficient maintenance and assembly operations in confined spaces.
Specification Summary & Compliance
This metric hex head screw features precise M5 x 0.8mm coarse threading with Class 6g thread fit tolerance ensuring consistent performance across industrial applications. Manufactured to ISO 4017 / DIN 933 specifications with dimensional accuracy including 8mm head width and 12mm length. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety. The Class 10.9 strength rating corresponds to minimum tensile strength of 150,000 psi, validated through rigorous quality control processes.
