S-97149A411 7/8"-14 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh industrial environments and outdoor applications.
• Precise thread engagement with Class 2B thread fit ensures reliable, vibration-resistant connections in critical assemblies.
• Enhanced durability in fine-thread UNF 7/8"-14 configuration, providing higher tensile strength and better load distribution.
• Easy installation and removal with standard external hex drive and 1 5/16" width, compatible with common wrenches for efficient maintenance.
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, safe for use in regulated industries and international markets.
• Optimal mechanical performance from right-hand thread design and 3/4" height, delivering stable, long-term fastening under dynamic loads.

Professional Applications & Engineering Value

This 7/8"-14 UNF hex nut with Black-Oxide 18-8 Stainless Steel construction addresses common failure points in industrial settings, such as corrosion-induced seizing and thread stripping under high stress. The fine thread spacing and Class 2B thread fit provide superior clamp load retention and resistance to loosening in vibrating machinery, making it ideal for heavy equipment, automotive systems, and structural frameworks. The external hex drive allows for high-torque application with standard tools, reducing installation time while the corrosion-resistant coating extends service life in humid or chemical-exposed environments, minimizing maintenance downtime and replacement costs.

Specification Summary & Compliance

Manufactured to UNF fine thread standards with precise Class 2B thread fit tolerances for consistent performance. Dimensions include 7/8"-14 thread size, 1 5/16" width, and 3/4" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability.