S-94178A113 M5 JIS B 1181 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc yellow-chromate plating for extended service life in harsh environments
• Heavy-duty performance with Class 8 strength rating for reliable fastening in demanding applications
• Precise thread engagement with Class 6H thread fit ensuring secure mating and vibration resistance
• Quick installation with standard external hex drive design compatible with common tools
• Metric coarse thread efficiency with M5x0.8mm configuration for faster assembly and reduced cross-threading risk
• Industry-standard compliance meeting JIS B 1181 specifications for consistent quality and interchangeability
• Durable steel construction providing excellent mechanical strength and long-term reliability

Professional Applications & Engineering Value

These Class 8 hex nuts deliver exceptional engineering value for industrial applications where corrosion resistance and mechanical reliability are critical. The zinc yellow-chromate plated steel construction provides superior protection against rust and environmental degradation, making these metric fasteners ideal for outdoor equipment, machinery, and automotive assemblies. The M5 coarse thread with 0.8mm pitch ensures rapid installation while minimizing the risk of cross-threading in production environments. With Class 6H thread fit precision, these JIS B 1181 compliant nuts maintain consistent clamping force and vibration resistance in high-stress applications, solving common challenges of loosening and fastener failure in industrial settings.

Specification Summary & Compliance

This standard hex nut features M5 thread size with 0.8mm coarse pitch and Class 6H thread fit tolerance for precise mating. Manufactured to JIS B 1181 specifications with Class 8 strength grade, ensuring dimensional accuracy and mechanical performance. The external hex drive design provides 8mm across flats with 4mm height profile. Right-hand thread direction follows standard metric conventions. The zinc yellow-chromate plating offers enhanced corrosion protection while maintaining compliance with industrial fastener standards for reliable performance in professional applications.