S-91280A035 M20 x 80 mm ISO 8765, DIN 960 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
- Exceptional tensile strength with Class 8.8 rating (110,000 psi) ensures reliable performance in high-stress applications
- Superior corrosion resistance through zinc plating extends service life in harsh industrial environments
- Precise thread engagement with Class 6h fit and extra fine 1.5mm pitch provides vibration-resistant fastening
- Optimized partial threading design allows for controlled clamping force and reduced weight
- Easy installation and removal with standard external hex drive and 30mm head width for common tool compatibility
- Consistent quality assurance through compliance with ISO 8765, RoHS 3, and REACH standards
- Durable material performance with Rockwell C21 hardness maintains structural integrity under repeated loads
Professional Applications & Engineering Value
This M20 metric hex head screw delivers critical engineering solutions for industrial applications requiring high-strength fastening with precision thread control. The Class 8.8 steel construction combined with zinc plating addresses common challenges of structural failure and environmental degradation in machinery, construction, and heavy equipment assemblies. The extra fine 1.5mm thread pitch and Class 6h thread fit provide superior resistance to vibration loosening, while the partially threaded design ensures optimal stress distribution. These metric screws are engineered to maintain clamping force integrity in dynamic loading conditions, making them ideal for critical joints in manufacturing equipment, structural frameworks, and automotive applications where reliability cannot be compromised.
Specification Summary & Compliance
This hex head screw features precise Class 6h thread fit tolerance with M20 x 1.5mm extra fine metric threading and 80mm length. Manufactured to ISO 8765 specification (equivalent to DIN 960) with Class 8.8 strength rating, ensuring consistent dimensional accuracy and mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safe use across industrial sectors while meeting international quality standards for industrial fasteners.
