S-94178A118 M12 JIS B 1181 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc yellow-chromate plating that extends service life in harsh industrial environments
• Exceptional thread engagement thanks to Class 6H thread fit and extra fine 1.25mm pitch for secure, vibration-resistant connections
• High-strength performance with Class 8 rating ensuring reliable performance in demanding applications
• Standardized compatibility through JIS B 1181 certification for consistent quality and interchangeability
• Easy installation and removal with standard external hex drive design and 17mm width for common tool compatibility
• Precision engineering with metric M12 threading and right-hand direction for accurate assembly in machinery and equipment
• Durable construction using steel material with protective plating for long-term reliability in heavy-duty applications

Professional Applications & Engineering Value

This Class 8 hex nut delivers exceptional engineering value through its zinc yellow-chromate plated steel construction, providing superior corrosion resistance that prevents failure in moisture-rich or chemically aggressive environments. The M12 x 1.25mm extra fine thread spacing with Class 6H fit ensures precise thread engagement, minimizing vibration-induced loosening in machinery, automotive assemblies, and structural applications. Engineered to JIS B 1181 standard, this metric hex nut maintains dimensional consistency across production batches, reducing assembly time and ensuring reliable performance in industrial equipment, manufacturing systems, and heavy machinery where consistent torque values and secure fastening are critical.

Specification Summary & Compliance

This hex nut features M12 metric threading with 1.25mm extra fine pitch and Class 6H thread fit for precision tolerance. The fastener meets JIS B 1181 specifications with standard external hex drive design, 17mm width, and 10mm height. Manufactured from steel with zinc yellow-chromate plating and rated Class 8 for strength performance. The right-hand threaded nut complies with international metric standards for industrial applications.