S-90854A223 M12 x 25 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 load-bearing capability with 150,000 psi tensile strength and Class 10.9 grade, ensuring reliable performance in high-stress industrial environments.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh or outdoor conditions.
- High durability and wear resistance due to Rockwell C32 hardness, minimizing deformation under heavy use.
- Easy installation and removal with external hex drive and 19mm head width, allowing for quick assembly with standard tools.
- Secure and precise fastening thanks to M12 coarse thread (1.75mm pitch) and Class 6h fit, reducing cross-threading risks.
- Full threading along the 25mm length provides consistent grip and distribution of clamping force across applications.
- Compliance with international standards including ISO 4017/DIN 933, ensuring interchangeability and quality in global projects.
Professional Applications & Engineering Value
This M12 hex head screw is engineered for demanding industrial and construction applications where high tensile strength and corrosion resistance are critical. The Class 10.9 steel construction, combined with a zinc yellow-chromate finish, effectively counters environmental factors like moisture and chemicals, reducing maintenance needs in machinery, structural frameworks, and automotive assemblies. Its fully threaded metric coarse pitch design ensures rapid installation and robust holding power, while the external hex drive facilitates efficient torque application with common wrenches. Ideal for heavy-duty fastening in manufacturing plants, infrastructure projects, and equipment that requires reliable, long-term performance under dynamic loads.
Specification Summary & Compliance
This fastener features precise M12 x 1.75mm coarse threads with a Class 6h thread fit for accurate engagement and meets ISO 4017 / DIN 933 specifications for dimensional consistency. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and adherence to global industrial standards for hazardous substance restrictions.
