S-90438A130 M5 JIS B 1190 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced vibration resistance with integrated 11.8 mm flange that acts as a built-in washer, distributing load and preventing loosening under dynamic loads
• Superior corrosion protection through zinc-plated steel construction, ensuring long-term durability in harsh industrial environments
• High-strength performance with Class 8 rating, providing reliable clamping force and resistance to mechanical stress
• Secure and precise fit due to Class 6H thread tolerance, ensuring compatibility with standard M5 coarse thread bolts
• Easy installation and removal with standard external hex drive design, allowing for quick assembly using common tools
• International compliance assurance meeting JIS B 1190 standard specifications for consistent quality and performance
• Environmental regulation adherence with full RoHS 3 and REACH compliance, making them suitable for global supply chains

Professional Applications & Engineering Value

This M5 flange nut delivers exceptional engineering value in applications where vibration resistance and reliable fastening are critical. The zinc-plated steel construction provides excellent corrosion protection for outdoor equipment, automotive assemblies, and machinery exposed to moisture. The integrated 11.8 mm flange eliminates the need for separate washers while creating a larger bearing surface that prevents surface damage and maintains clamping force under constant vibration. With Class 8 strength and coarse thread design, these metric flange nuts offer superior performance in high-stress industrial applications while the JIS B 1190 certification ensures consistent quality across production batches. The external hex drive facilitates quick installation in tight spaces, making them ideal for assembly lines and maintenance operations.

Specification Summary & Compliance

This flange nut features M5 x 0.8 mm coarse thread with Class 6H thread fit tolerance for precise mating with standard bolts. Manufactured to JIS B 1190 specifications with dimensions including 8 mm width, 5 mm height, 11.8 mm flange diameter, and 0.7 mm flange thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.