S-91280A890 M20 x 80 mm ISO 4014, DIN 931, 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
- Enhanced load-bearing capacity with Class 8.8 tensile strength (110,000 psi) for reliable performance in high-stress applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Optimized thread engagement with partially threaded design and 46mm minimum thread length for secure, vibration-resistant connections
- Precise dimensional accuracy with Class 6h thread fit and metric coarse threading (M20x2.5) ensuring consistent assembly performance
- Robust mechanical properties featuring Rockwell C21 hardness for excellent wear resistance and durability
- Industry-standard compatibility meeting ISO 4014, DIN 931, and SAE J1199 specifications for global engineering applications
- Environmental compliance assurance with RoHS 3 and REACH compliance for responsible manufacturing and usage
Professional Applications & Engineering Value
This M20 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc-plated finish, specifically designed to address critical industrial fastening challenges. The partially threaded configuration with coarse metric threading (M20x2.5) provides optimal stress distribution while preventing thread damage during repeated assembly cycles. The external hex drive and substantial 30mm head width enable high-torque installation without stripping, making it ideal for heavy-duty construction, machinery assembly, and structural applications where vibration resistance and long-term reliability are paramount. The combination of 110,000 psi tensile strength and standardized dimensions ensures consistent performance across diverse industrial environments.
Specification Summary & Compliance
This hex head screw maintains precise Class 6h thread fit tolerance with M20x2.5 coarse thread spacing and 46mm minimum thread length. Manufacturing adheres to ISO 4014, DIN 931, and SAE J1199 standards, ensuring dimensional accuracy and mechanical consistency. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental responsibility and workplace safety standards.
