S-96439A180 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 corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable press-fit installation ensures permanent retention in thin panels as slim as 0.025"
- Precision UNC coarse threads with Class 2B fit provide smooth, secure mating with mating components
- Round head design offers low-profile installation without requiring special tooling
- RoHS 3 compliance meets stringent environmental regulations for global manufacturing
- Optimized for No. 19 drill bit (0.166" diameter) ensures proper fit and maximum pull-out resistance
- Right-hand thread direction with coarse spacing enables quick assembly and disassembly
Professional Applications & Engineering Value
The PEM® SMPS-440 press-fit nut delivers exceptional engineering value in thin panel applications where space constraints and material integrity are critical. Manufactured from 18-8 stainless steel, this component provides excellent corrosion resistance while maintaining structural stability in electronic enclosures, communication devices, and industrial control panels. The UNC coarse threads with Class 2B fit ensure consistent engagement with mating screws, eliminating cross-threading issues in high-volume production. The press-fit installation method creates permanent threads without welding or adhesives, significantly reducing assembly time while providing reliable performance in vibration-prone environments. This round head press nut is particularly valuable for applications requiring repeated disassembly and reassembly while maintaining thread integrity.
Specification Summary & Compliance
This 4-40 UNC press-fit nut features precision Class 2B thread fit with coarse thread spacing and right-hand thread direction. The component is designed for installation in panels with minimum thickness of 0.025" using No. 19 drill bit (0.166" diameter). Manufacturing complies with RoHS 3 (2015/863/EU) environmental standards, ensuring suitability for global industrial applications requiring hazardous substance restriction compliance.
