S-95185A110 4-40 Press-Fit Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Reliable panel retention in thin materials down to 0.03" minimum thickness without requiring secondary fastening operations
• Optimized installation efficiency with standard No. 19 drill bit (0.166" diameter) compatibility for streamlined assembly processes
• Consistent thread engagement through Class 2B thread fit ensuring secure mating with mating components
• Enhanced durability with coarse UNC thread spacing providing superior resistance to vibration loosening
• Environmental compliance meeting RoHS 3 (2015/863/EU) standards for restricted substance management
• Right-hand thread design offering familiar installation direction for reduced assembly errors and training time

Professional Applications & Engineering Value

This 4-40 UNC press fit nut delivers exceptional engineering value in panel mounting applications where space constraints and material thickness present significant challenges. The zinc-plated steel construction provides essential corrosion protection while maintaining the structural integrity needed for high-vibration environments. The round head design ensures uniform pressure distribution during installation, preventing panel deformation in thin materials as fine as 0.03". Engineered with coarse thread spacing and Class 2B thread fit, these press-fit nuts maintain reliable thread engagement even under dynamic loading conditions, making them ideal for electronics enclosures, communication equipment, and automotive assemblies where disassembly is not anticipated.

Specification Summary & Compliance

This PEM® S-440-0 press fit nut features precision 4-40 UNC coarse threads with Class 2B thread fit tolerances, ensuring consistent mating with standard male threads. Manufactured to exacting standards with 0.25" head OD and 0.07" head height dimensions for reliable press-fit installation in panels prepared with No. 19 drill bit (0.166" diameter). The product maintains full compliance with RoHS 3 (2015/863/EU) environmental regulations and is supplied in the inch system of measurement for North American manufacturing applications.