S-91280A211 M12 x 70 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 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 110,000 psi tensile strength and Class 8.8 grade for reliable performance in demanding applications
- Enhanced durability and corrosion resistance thanks to the steel construction and black finish, ensuring long service life
- Easy installation and removal with external hex drive and 19mm head width, compatible with standard tools
- Secure fastening in various materials due to coarse 1.75mm pitch and Class 6g thread fit, reducing cross-threading risks
- Maximum grip and holding power from fully threaded design, providing consistent engagement along the entire 70mm length
- Global compliance and safety assurance meeting ISO 4017/DIN 933 standards, RoHS 3, and REACH regulations
- Consistent performance under stress backed by Rockwell C21 hardness, maintaining integrity in high-vibration environments
Professional Applications & Engineering Value
This M12 hex head screw is engineered to address critical industrial challenges, such as structural loosening under dynamic loads and corrosion in harsh environments. The Class 8.8 steel construction and fully threaded metric bolt design ensure uniform stress distribution, preventing joint failure in machinery, construction, and automotive assemblies. Its coarse thread pitch (1.75mm) and Class 6g thread fit enable quick installation in soft materials like aluminum or wood, while the external hex drive allows for high-torque application without slippage. Ideal for heavy-duty frames, equipment mounting, and infrastructure projects, it delivers reliable clamping force and vibration resistance, reducing maintenance downtime and enhancing operational safety.
Specification Summary & Compliance
This fastener adheres to precise dimensional tolerances, including Class 6g thread fit per ISO metric standards and fully threaded M12x1.75mm coarse pitch. It conforms to ISO 4017/DIN 933 manufacturing specifications, ensuring interchangeability and quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of hazardous substances for safe use in global industrial markets.
