S-90438A160 M8 JIS B 1190 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance with integrated flange design eliminating the need for separate washers
• Enhanced corrosion protection through zinc plating, extending service life in demanding environments
• High-load bearing capacity with Class 8 strength rating for reliable performance in heavy-duty applications
• Precise, secure fastening ensured by fine 1mm pitch and Class 6H thread fit, reducing the risk of loosening
• Streamlined installation with standard external hex drive for compatibility with common tools
• Broad industrial compliance meeting JIS B 1190 standards for consistent quality and interchangeability
• Environmental responsibility with full RoHS 3 and REACH compliance for safe, sustainable use

Professional Applications & Engineering Value

This M8 flange nut is engineered to solve critical industrial fastening challenges, particularly in applications prone to vibration and dynamic loads. The zinc-plated steel construction provides a durable barrier against corrosion, essential for machinery, automotive assemblies, and outdoor equipment. The integrated 17.5mm flange distributes clamping force over a wider area, reducing surface pressure and preventing damage to connected components. Combined with a fine 1mm thread pitch and Class 6H thread fit, it maintains clamp load integrity under stress, making it ideal for precision engineering, manufacturing jigs, and structural frameworks where reliability is non-negotiable.

Specification Summary & Compliance

This metric flange nut features M8 x 1mm fine right-hand thread with Class 6H thread fit tolerance, ensuring precise engagement. Manufactured to JIS B 1190 specifications, it guarantees dimensional accuracy with a 12mm width, 8mm height, 17.5mm flange diameter, and 1.1mm flange thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for regulated industrial and international markets.