S-90438A210 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 corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Enhanced load distribution through the 25mm flange diameter, reducing surface pressure and preventing material damage
- Exceptional vibration resistance from extra fine 1.25mm thread pitch, maintaining secure fastening under dynamic loads
- Heavy-duty performance with Class 8 strength rating, ensuring reliability in high-stress applications
- Precise thread engagement with Class 6H thread fit, providing consistent clamping force and reducing installation errors
- Compliance assurance meeting JIS B 1190 standards, guaranteeing dimensional accuracy and interchangeability
- Environmental responsibility with REACH and RoHS 3 compliance, suitable for regulated industries
Professional Applications & Engineering Value
This heavy-duty flange nut delivers critical engineering advantages through its zinc-plated steel construction and JIS B 1190 certification. The integrated flange eliminates the need for separate washers while providing superior bearing surface, making it ideal for automotive assembly, machinery manufacturing, and structural applications where space optimization is crucial. The M12 x 1.25mm extra fine thread configuration ensures exceptional resistance to loosening under vibration, while the Class 8 strength rating provides reliable performance in high-torque applications. The combination of 17mm hex width and external hex drive allows for efficient installation with standard tools, reducing assembly time in production environments.
Specification Summary & Compliance
This metric flange nut features precise Class 6H thread fit with M12 x 1.25mm extra fine thread spacing and right-hand thread direction. Manufacturing complies with JIS B 1190 standards, ensuring dimensional accuracy with 25mm flange diameter, 1.4mm flange thickness, 17mm width, and 11.5mm height. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations, meeting the highest industry standards for safety and sustainability.
