S-91310A881 M20 x 70 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance and durability through high-grade steel construction with Rockwell C32 hardness
- Optimal thread engagement with Class 6g thread fit ensuring precise mating with nuts and threaded components
- Easy installation and removal with standard 30mm external hex head design compatible with common tools
- Full-length threading provides maximum grip and distribution of clamping force along the entire 70mm length
- Industry-standard compatibility with M20 coarse thread (2.5mm pitch) meeting global metric specifications
- Regulatory compliance assurance with RoHS 3 and REACH environmental standards for international projects
Professional Applications & Engineering Value
This high-strength Class 10.9 steel hex head screw delivers exceptional performance in demanding industrial environments where vibration resistance and structural integrity are critical. The M20 coarse thread with 2.5mm pitch provides superior holding power in metal-to-metal applications, construction frameworks, and heavy machinery assembly. The fully threaded design ensures maximum surface contact for enhanced load distribution, while the external hex drive allows for high-torque installation without stripping. Engineered to DIN 933 and ISO 4017 standards, this fastener maintains precise dimensional accuracy for consistent performance in automotive, manufacturing, and structural engineering applications where failure is not an option.
Specification Summary & Compliance
This metric hex head screw features M20 x 2.5mm coarse threading with Class 6g thread fit tolerance per ISO metric standards. The fastener is manufactured to ISO 4017 and DIN 933 specifications with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With dimensions of 70mm length, 30mm head width, and 12.5mm head height, this Class 10.9 strength grade screw maintains precise dimensional control for reliable performance in industrial applications requiring high tensile strength and durability.
