S-98560A639 4-40 x 0.355" Rivet Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance through tin-zinc plating, extending service life in harsh industrial environments
• Reliable thread engagement with Class 2B fit UNC coarse threads ensuring secure fastening in metal applications
• Lightweight aluminum construction providing high strength-to-weight ratio without compromising durability
• Easy installation compatibility with standard 3/16" drill bits for quick deployment in 0.03" to 0.09" material thickness
• Versatile open-end sleeve design allowing through-bolt passage and accommodating various assembly requirements
• Right-hand thread direction conforming to industry standards for straightforward installation and maintenance
• Environmental compliance assurance meeting REACH and RoHS 3 standards for safe industrial usage

Professional Applications & Engineering Value

This 4-40 UNC coarse thread aluminum rivet nut solves critical fastening challenges in metal fabrication and assembly operations. The tin-zinc plated aluminum construction provides excellent corrosion protection while maintaining lightweight properties, making it ideal for applications where weight reduction is crucial without sacrificing structural integrity. The sleeve-type body design with 0.187" diameter ensures optimal pull-through resistance when installed in materials ranging from 0.03" to 0.09" thickness. Engineers benefit from the Class 2B thread fit that delivers consistent engagement with mating components, reducing the risk of cross-threading and ensuring reliable performance in vibration-prone environments. The right-hand UNC coarse threading facilitates quick installation and removal, streamlining maintenance procedures in industrial equipment, automotive assemblies, and electronic enclosures where durable threaded inserts are essential for long-term serviceability.

Specification Summary & Compliance

This rivet nut features precise UNC coarse threading (4-40) with Class 2B thread fit tolerance for consistent mating performance. The fastener maintains dimensional accuracy with 0.187" body diameter, 0.211" flange diameter, and 0.355" total length. Manufacturing compliance includes adherence to REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental safety and industrial suitability. Installation specifications require a 3/16" drill bit (0.1875" diameter) for proper hole preparation in metal substrates.