S-90854A220 M12 x 20 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 tensile strength (150,000 PSI) ensures reliable performance in high-stress industrial applications, reducing failure risks.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh environments, minimizing maintenance needs.
- High hardness rating (Rockwell C32) provides excellent wear resistance and durability under repetitive loads.
- Precision coarse threading (M12 x 1.75mm) with Class 6h fit enables faster assembly and secure fastening in various materials.
- Full threading design offers consistent grip along the entire 20mm length, enhancing load distribution and joint stability.
- External hex drive with standard 19mm head allows for easy installation using common tools, improving workflow efficiency.
- Compliance with international standards (ISO 4017/DIN 933) ensures interchangeability and quality consistency across global projects.
Professional Applications & Engineering Value
Engineered for demanding industrial fastening scenarios, these M12 hex head screws deliver critical solutions where vibration resistance and structural integrity are paramount. The Class 10.9 steel construction, combined with zinc yellow-chromate plating, effectively counters corrosion in outdoor machinery, automotive assemblies, and construction frameworks. The coarse metric thread (1.75mm pitch) facilitates quick engagement in soft metals or composites, reducing installation time while maintaining high tensile strength. Fully threaded design ensures uniform stress distribution, preventing loosening in dynamic loads—ideal for heavy equipment, conveyor systems, and structural brackets requiring dependable, long-term performance under Rockwell C32 hardness specifications.
Specification Summary & Compliance
This fully threaded fastener adheres to ISO 4017 / DIN 933 dimensional standards with Class 6h thread fit for precise tolerance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance, ensuring safe use in regulated industries. The right-hand thread and external hex drive align with global metric specifications for seamless integration.
