S-91310A541 M8 x 40 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 150,000 psi tensile strength for demanding industrial applications
- Exceptional durability achieved through Rockwell C32 hardness and Class 10.9 steel construction
- Reliable fastening performance with fully threaded design and Class 6g fit ensuring consistent engagement
- Optimized installation efficiency through coarse 1.25mm pitch threads and external hex drive design
- Enhanced corrosion resistance with steel material meeting rigorous environmental compliance standards
- Universal compatibility with metric M8 sizing and right-hand threading for broad industrial use
- Regulatory confidence with full compliance to international ISO 4017/DIN 933 specifications
Professional Applications & Engineering Value
These M8 hex head screws deliver critical engineering advantages in heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The Class 10.9 steel construction provides exceptional fatigue resistance, while the fully threaded coarse pitch design ensures rapid installation and superior holding power in metal-to-metal assemblies, machinery frames, and structural steel connections. The external hex drive accommodates high torque applications, preventing stripping during installation in high-stress environments. Manufactured to ISO 4017/DIN 933 standards, these metric hex bolts offer reliable performance in automotive, construction, and manufacturing sectors where precision and durability are non-negotiable.
Specification Summary & Compliance
This M8 x 1.25 x 40mm hex head screw features Class 6g thread fit tolerance ensuring precise engagement in metric applications. The fastener meets ISO 4017/DIN 933 manufacturing specifications for dimensional accuracy and mechanical properties. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and material sustainability. The Class 10.9 strength rating and 150,000 psi tensile strength validate its suitability for critical structural applications requiring certified performance standards.
