S-91310A155 M20 x 30 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 Class 10.9 strength rating and 150,000 psi tensile strength for reliable performance in high-stress applications
- Superior wear resistance thanks to Rockwell C32 hardness, ensuring extended service life and reduced maintenance costs
- Quick and secure installation with external hex drive design providing positive tool engagement and high torque capability
- Optimized thread engagement through Class 6g thread fit and coarse 2.5mm pitch, enabling faster assembly in various materials
- Full-threaded design delivers consistent clamping force along the entire 30mm length for uniform stress distribution
- Environmental compliance assurance with RoHS 3 and REACH regulations, making them suitable for regulated industries
- Reliable dimensional consistency through ISO 4017/DIN 933 compliance, ensuring interchangeability and proper fit
Professional Applications & Engineering Value
These M20 hex head screws with Class 10.9 steel construction address critical engineering challenges in heavy machinery, structural steelwork, and industrial equipment assembly. The fully threaded metric coarse thread design (M20x2.5) provides superior resistance to vibration loosening while the external hex drive enables high-torque installation in confined spaces. The black steel finish offers basic corrosion protection while maintaining cost-effectiveness for industrial applications. With 150,000 psi tensile strength and controlled Rockwell C32 hardness, these fasteners prevent thread stripping and head deformation under extreme loads, making them ideal for critical connections in construction, automotive, and manufacturing sectors where failure is not an option.
Specification Summary & Compliance
Manufactured to precise ISO 4017/DIN 933 standards with Class 6g thread fit tolerance for consistent dimensional accuracy. The metric coarse thread (M20x2.5) with right-hand threading follows international specifications. These 30mm length hex head screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest chemical substance restrictions for industrial applications worldwide.
