S-90438A120 M4 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
- Enhanced vibration resistance with integrated 10.5mm flange that eliminates the need for separate washers
- Superior corrosion protection through zinc-plated steel construction for extended service life in harsh environments
- High-strength performance with Class 8 rating ensuring reliable fastening in demanding industrial applications
- Secure thread engagement with Class 6H thread fit providing consistent clamping force and preventing loosening
- Easy installation and removal using standard 7mm external hex drive compatible with common tools
- International standard compliance meeting JIS B 1190 specifications for global project compatibility
- Environmental responsibility with full RoHS 3 and REACH compliance for sustainable operations
Professional Applications & Engineering Value
This M4 flange nut delivers critical engineering solutions where vibration resistance and space optimization are paramount. The zinc-plated steel construction provides excellent corrosion protection for outdoor equipment, automotive assemblies, and machinery exposed to moisture or chemicals. The integrated 10.5mm flange distributes clamping pressure over a wider surface area, preventing damage to soft materials and maintaining joint integrity under dynamic loads. With Class 8 strength and coarse metric thread design, these industrial flange nuts offer quick assembly in production environments while resisting loosening from machinery vibrations. The external hex drive ensures compatibility with standard wrenches, streamlining maintenance procedures across manufacturing, electronics, and heavy equipment applications.
Specification Summary & Compliance
This metric flange nut features precise M4 x 0.7mm coarse threading with Class 6H thread fit tolerance for consistent performance. Manufactured to JIS B 1190 standards with 7mm width across flats and 4.2mm height profile. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The zinc-plated surface treatment provides additional corrosion resistance while maintaining the Class 8 strength rating for reliable mechanical performance.
