S-91028A411 M3 JIS B 1181 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in humid or outdoor environments
• Exceptional load-bearing capacity from Class 8 strength grade, ensuring reliable performance under high stress conditions
• Precise thread engagement with Class 6H fit, providing consistent clamping force and reducing vibration loosening
• Quick installation and removal with standard external hex drive and coarse 0.5 mm pitch threads
• Industry-standard compatibility through JIS B 1181 compliance, guaranteeing interchangeability with metric fastener systems
• Environmental compliance assurance with RoHS 3 certification, meeting global regulatory requirements
• Optimized dimensional stability with 5.5mm width and 2.4mm height for consistent performance across applications

Professional Applications & Engineering Value

This M3 hex nut delivers exceptional engineering value through its zinc-plated steel construction and Class 8 strength rating, specifically designed to address common industrial fastening challenges. The coarse thread pitch (0.5 mm) enables rapid assembly in production environments while resisting cross-threading during high-volume operations. The external hex drive provides superior torque transmission for secure fastening in confined spaces, making it ideal for automotive assemblies, machinery frames, and electrical enclosures. Manufactured to JIS B 1181 standards, this metric hex nut ensures dimensional consistency across global supply chains, while the Class 6H thread fit maintains precise tolerances for vibration-resistant connections in demanding applications.

Specification Summary & Compliance

This hex nut features M3 x 0.5 mm coarse pitch threads with Class 6H thread fit per ISO metric standards, ensuring precise dimensional accuracy. The fastener meets JIS B 1181 manufacturing specifications and achieves Class 8 strength classification for reliable mechanical performance. Compliance with RoHS 3 (2015/863/EU) regulations confirms environmental safety, while the zinc-plated surface treatment provides additional corrosion protection. Dimensions include 5.5 mm width across flats and 2.4 mm height, maintaining standard metric hex nut proportions for universal compatibility.