S-91310A156 M20 x 35 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 high-tensile steel construction, ensuring reliable performance under extreme mechanical stress
- Enhanced corrosion resistance with black finish, providing durable protection in harsh industrial environments
- Optimal torque transmission thanks to the external hex drive and 30mm head width, allowing for secure installation with standard tools
- Consistent thread engagement with coarse 2.5mm pitch and Class 6g fit, enabling faster assembly and reduced cross-threading risks
- Full-length threading for maximum grip and uniform stress distribution across the entire 35mm length
- High hardness rating of Rockwell C32, minimizing wear and deformation during repeated use
- Global compliance assurance meeting ISO 4017 (equivalent to DIN 933), RoHS 3, and REACH standards for safe, regulated applications
Professional Applications & Engineering Value
This M20 hex head screw is engineered to address critical challenges in heavy machinery, structural steelwork, and industrial equipment assembly. The Class 10.9 high-tensile steel delivers a robust 150,000 PSI tensile strength, preventing fastener failure in high-vibration or dynamic load scenarios. The fully threaded metric design with coarse 2.5mm pitch ensures rapid installation and superior clamping force in thick materials, while the external hex drive accommodates high-torque applications without stripping. Ideal for construction, automotive, and manufacturing sectors, this screw provides long-term reliability where durability and regulatory compliance are non-negotiable.
Specification Summary & Compliance
This fastener adheres to ISO 4017 specifications (equivalent to DIN 933) with Class 6g thread tolerance for precise fit. It is manufactured from high-tensile steel graded Class 10.9, ensuring consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial markets.
