S-91280A911 M20 x 80 mm ISO 4017, DIN 933, SAE J1199, ISO 898 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 corrosion resistance with zinc plating for extended service life in harsh industrial environments
- Exceptional mechanical strength with Class 8.8 rating and 110,000 psi tensile strength for heavy-duty applications
- Reliable thread engagement with fully threaded M20 coarse pitch design for faster installation and secure fastening
- Optimized torque transmission through external hex drive and standard 30mm head width for efficient assembly
- Precision manufacturing with Class 6h thread fit ensuring consistent performance and interchangeability
- Enhanced durability with Rockwell C21 hardness providing excellent wear resistance and structural integrity
- Global compliance assurance meeting multiple international standards including ISO 4017 and DIN 933
Professional Applications & Engineering Value
This M20 hex head screw delivers critical engineering solutions for demanding industrial applications where reliability cannot be compromised. The Class 8.8 steel construction provides the necessary structural integrity for heavy machinery, construction equipment, and industrial assembly lines, while the zinc plating offers essential corrosion protection in challenging environments. The fully threaded metric coarse pitch design ensures maximum thread engagement and vibration resistance, making it ideal for applications requiring consistent clamping force. With its external hex drive and standardized dimensions, this fastener enables efficient installation and maintenance procedures, reducing assembly time while maintaining the highest safety standards in mechanical engineering projects.
Specification Summary & Compliance
This M20 x 2.5mm hex head screw features precision Class 6h thread fit tolerance and fully threaded construction per ISO 4017 and DIN 933 specifications. Manufactured to meet ISO 898 and SAE J1199 standards for mechanical properties, it ensures consistent performance across industrial applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, providing assurance for sustainable procurement and use in regulated industries.
