S-94178A111 M3 JIS B 1181 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc yellow-chromate plating for long-lasting performance in harsh industrial environments.
• Reliable fastening strength from Class 8 grade material, ensuring secure connections under high-stress conditions.
• Precise thread engagement with Class 6H thread fit, reducing the risk of cross-threading and improving assembly efficiency.
• Broad compatibility with M3 coarse (0.5 mm pitch) right-hand threads, suitable for standard metric fastener systems.
• Standard external hex drive design for easy installation and removal using common wrenches or sockets.
• JIS B 1181 compliance guarantees consistent quality and interchangeability in Japanese industrial applications.
• Compact dimensions (5.5 mm width, 2.4 mm height) for space-constrained assemblies without sacrificing durability.

Professional Applications & Engineering Value

This M3 hex nut is engineered for demanding industrial applications where corrosion resistance and thread reliability are critical. The zinc yellow-chromate plated steel construction provides a robust barrier against oxidation and chemical exposure, extending service life in automotive, machinery, and outdoor equipment. Its coarse thread with 0.5 mm pitch and Class 6H thread fit ensures quick, secure fastening with minimal risk of stripping, while the external hex drive allows for high-torque installation. Compliant with JIS B 1181 standard, it offers consistent performance in Japanese-engineered systems, reducing downtime and maintenance costs in precision assemblies.

Specification Summary & Compliance

This hex nut features M3 x 0.5 mm metric coarse threads with Class 6H thread fit and right-hand direction. Manufactured to JIS B 1181 specifications from Class 8 strength grade zinc yellow-chromate plated steel, it meets dimensional requirements (5.5 mm width, 2.4 mm height) and is RoHS and REACH compliant for environmental safety.