S-96439A140 4-40 Press-Fit Nuts
Press-Fit Nuts
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Basic Information
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Other Parameters
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Key Features & Benefits at a Glance
- Superior panel retention with press-fit installation for reliable performance in 0.056" minimum panel thickness
- Corrosion-resistant durability thanks to 18-8 stainless steel construction for long service life in harsh environments
- Precision thread engagement with Class 2B thread fit ensuring consistent, secure fastening in assembly operations
- Optimized installation efficiency using standard No. 19 drill bit (0.166" diameter) for quick, accurate mounting
- Enhanced load distribution from round head design with 0.25" OD and 0.07" height for stable surface contact
- Industry-standard compatibility with 4-40 UNC coarse right-hand threads for broad application versatility
- Environmental compliance assurance meeting RoHS 3 (2015/863/EU) standards for regulated industries
Professional Applications & Engineering Value
This 4-40 UNC press-fit nut delivers exceptional engineering value in electronic enclosures, communication panels, and industrial control systems where vibration resistance and permanent mounting are critical. The 18-8 stainless steel construction provides inherent corrosion resistance, eliminating galvanic compatibility concerns in mixed-material assemblies. With its Class 2B thread fit and coarse thread spacing, the CLS-440-2 ensures rapid installation while maintaining precise alignment in high-volume production environments. The press-fit round head design creates permanent retention without secondary operations, solving common issues of loose hardware in thin-sheet applications where welding or adhesives aren't feasible.
Specification Summary & Compliance
Manufactured to precise dimensional standards including 0.25" head OD and 0.07" head height for consistent performance. Thread specifications include 4-40 UNC coarse threads with Class 2B thread fit per industry standards, ensuring compatibility with mating components. The product complies with RoHS 3 (2015/863/EU) environmental directives and is engineered for installation in panels using No. 19 drill bit (0.166" diameter) for optimal press-fit retention in the specified 0.056" minimum panel thickness.
