S-99051A200 4-40 Press-Fit Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Secure, permanent installation in panels as thin as 0.054", providing robust thread retention without the need for welding or adhesives.
• Precision thread engagement with Class 2B fit and coarse UNC threading, enabling faster assembly and reducing cross-threading risks.
• Optimized for standard tooling using an L drill bit (0.29" diameter), streamlining the installation process and minimizing setup time.
• RoHS 3 compliance guarantees environmental safety and meets stringent international regulatory standards for electronics and sensitive applications.
• Right-hand thread design with consistent coarse spacing, ensuring compatibility with common 4-40 fasteners and reducing inventory complexity.
• Round head profile offers a low-profile, snag-resistant finish that protects against damage in tight or high-vibration assemblies.

Professional Applications & Engineering Value

This 4-40 UNC press-fit nut delivers critical engineering value by solving common panel mounting challenges. Crafted from 18-8 stainless steel, it resists oxidation and chemical exposure, making it ideal for electronics enclosures, communication devices, and medical equipment where material integrity is paramount. The press-fit design eliminates loose hardware and secondary operations, allowing for rapid, high-volume installation in panels as thin as 0.054". With a Class 2B thread fit and coarse thread spacing, it ensures reliable mating with standard UNC fasteners, reducing assembly errors and maintenance needs. Its right-hand thread and compatibility with an L drill bit further enhance workflow efficiency, providing a durable, maintenance-free solution for OEMs and maintenance teams.

Specification Summary & Compliance

This press-fit nut adheres to UNC thread standards with a Class 2B thread fit for consistent dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances. Designed for use with a 0.29" L drill bit and 0.054" minimum panel thickness, it guarantees precise press-fit retention. The right-hand thread and coarse thread spacing align with industry norms, supporting reliable performance in inch-system applications.