S-90438A190 M12 JIS B 1190 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance thanks to the integrated flange design that distributes load evenly and eliminates the need for separate washers
- Enhanced corrosion protection with zinc-plated steel construction, ensuring long-term durability in harsh industrial environments
- High-strength performance with Class 8 rating, providing reliable clamping force for heavy-duty applications
- Secure and precise fit with Class 6H thread tolerance and M12 coarse thread (1.75mm pitch) for easy assembly and reduced cross-threading risk
- Time and cost efficiency with the 25mm flange diameter offering a larger bearing surface, speeding up installation and improving joint integrity
- Broad compatibility as it meets JIS B 1190 standards, ensuring interchangeability and quality in metric fastener systems
- Environmental and regulatory compliance with RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications
Professional Applications & Engineering Value
This heavy-duty flange nut is engineered to solve common industrial challenges such as joint loosening under dynamic loads and corrosion-induced failure. The zinc-plated steel material provides a robust barrier against moisture and chemicals, extending service life in automotive, machinery, and construction applications. Its integrated flange with a 25mm diameter acts as a built-in washer, increasing the bearing surface area to prevent surface damage and maintain clamp load under high vibration conditions. The M12 coarse thread (1.75mm pitch) ensures quick assembly and reliable performance in metric systems, while compliance with JIS B 1190 guarantees consistent quality and dimensional accuracy for professional engineering projects.
Specification Summary & Compliance
This flange nut features an M12 x 1.75mm coarse thread with Class 6H thread fit tolerance, ensuring precise engagement and strength. Key dimensions include a 17mm width across flats, 11.5mm height, and a 25mm flange diameter with 1.4mm thickness. It is manufactured to meet JIS B 1190 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for industrial use without hazardous substances.
