S-90373A103 M8 x 25 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
- Exceptional tensile strength of 170,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- High hardness rating of Rockwell C39 provides superior wear resistance and longevity, minimizing replacement needs in demanding environments.
- Fully threaded M8 coarse pitch design allows for faster installation and secure holding power in various materials.
- Class 12.9 strength grade offers the highest metric property class, ideal for critical assemblies requiring maximum load-bearing capacity.
- Precise Class 6g thread fit ensures smooth engagement and consistent clamping force, enhancing assembly efficiency.
- External hex drive with 13mm head width enables easy torque application using standard tools, speeding up maintenance and repairs.
- Compliance with ISO 4017 DIN 933 standards guarantees dimensional accuracy and interchangeability, supporting global engineering projects.
Professional Applications & Engineering Value
This M8 hex head screw is engineered from high-grade steel with a Class 12.9 rating, making it a top choice for heavy-duty industrial applications such as machinery, automotive systems, and structural frameworks. The fully threaded coarse pitch (1.25mm) and right-hand thread design facilitate quick assembly and disassembly, while the external hex drive ensures compatibility with common wrenches. Its high tensile strength and Rockwell C39 hardness address common issues like vibration loosening and material fatigue, providing long-term reliability in environments subject to dynamic loads. By meeting ISO 4017 DIN 933 specifications, this metric hex bolt delivers consistent performance, reducing downtime and maintenance costs in engineering projects.
Specification Summary & Compliance
This fastener features an M8 x 1.25mm coarse thread with a Class 6g thread fit and 25mm length, adhering to ISO 4017 DIN 933 standards for dimensional precision. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material sustainability.
