S-90854A302 M20 x 40 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
- Superior corrosion resistance with zinc yellow-chromate plating for extended service life in harsh industrial environments
- Exceptional load-bearing capacity from Class 10.9 high-strength steel construction, supporting up to 150,000 psi tensile strength
- Reliable thread engagement with Class 6h thread fit ensuring precise mating and vibration resistance
- Easy installation and removal through standard external hex drive design compatible with common tools
- Optimal material hardness at Rockwell C32 for excellent wear resistance and durability
- Full thread coverage along the entire 40mm length for maximum grip and distribution of clamping forces
- Global compliance assurance meeting ISO 4017, DIN 933 standards plus RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
These M20 hex head screws deliver critical performance in demanding industrial applications where high tensile strength and corrosion resistance are paramount. The Class 10.9 steel construction combined with zinc yellow-chromate plating provides exceptional protection against environmental degradation, making them ideal for machinery assembly, structural steel connections, and heavy equipment manufacturing. The metric coarse thread with 2.5mm pitch ensures rapid installation while maintaining secure fastening, reducing assembly time without compromising joint integrity. Engineered to withstand extreme vibration and dynamic loads, these fully threaded fasteners distribute stress evenly along the entire 40mm length, preventing localized failure points in critical applications.
Specification Summary & Compliance
This M20x2.5x40mm hex head screw features precision Class 6h thread fit according to ISO metric standards, ensuring consistent performance across industrial applications. Manufacturing complies with ISO 4017 and DIN 933 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest European Union requirements for hazardous substance restrictions and chemical safety in industrial components.
