S-91028A415 M5 JIS B 1181 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• High-strength Class 8 performance ensures reliable fastening integrity under substantial mechanical loads
• Precision Class 6H thread fit provides consistent engagement and vibration resistance with mating components
• Standard external hex design enables quick installation and removal with common wrench tools
• JIS B 1181 compliance guarantees dimensional accuracy and interchangeability in metric assemblies
• RoHS 3 environmental compliance meets strict regulatory requirements for industrial applications
• Metric coarse threading (M5x0.8mm) offers excellent assembly speed and reduced cross-threading risk

Professional Applications & Engineering Value

This M5 hex nut delivers critical engineering solutions where vibration resistance and corrosion protection are paramount. The zinc-plated steel construction creates a sacrificial barrier against oxidation, significantly extending service life in manufacturing equipment, machinery frames, and outdoor installations. The Class 8 strength rating ensures maintained clamp force under dynamic loads, while the coarse metric thread profile accelerates assembly in production environments and resists loosening in high-vibration applications. Compliant with JIS B 1181 standards, these external hex nuts provide guaranteed dimensional stability for precision assemblies across automotive, industrial machinery, and electrical enclosure applications.

Specification Summary & Compliance

Manufactured to JIS B 1181 specifications with Class 6H thread tolerance ensuring precise fit with mating components. Features M5x0.8mm coarse metric threads with right-hand orientation and standard hex profile (8mm width, 4mm height). Fully compliant with RoHS 3 (2015/863/EU) environmental regulations for industrial fastener applications.