S-94674A485 4-40 Press-Fit Nuts
Press-Fit Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Other Parameters
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Key Features & Benefits at a Glance
- Secure panel mounting with press-fit installation that eliminates the need for additional hardware or welding
- Superior corrosion resistance thanks to 18-8 stainless steel construction for long-lasting performance in harsh environments
- High-strength thread engagement with Class 2B UNC coarse threads ensuring reliable, vibration-resistant connections
- Quick and efficient assembly with hex flange design providing excellent torque transmission and anti-rotation stability
- Precision fit for 0.04" panels with consistent dimensions that prevent loosening and maintain panel integrity
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable industrial use
- Optimized installation process using standard No. 20 drill bit (0.161" diameter) for perfect press-fit application
Professional Applications & Engineering Value
These 4-40 UNC press-fit nuts solve critical challenges in panel mounting applications where traditional fastening methods fall short. The 18-8 stainless steel construction provides exceptional corrosion resistance for electronics enclosures, industrial control panels, and automotive assemblies exposed to moisture and chemicals. The hex flange design delivers superior torque resistance while the press-fit installation eliminates threading operations, reducing assembly time by up to 50% compared to conventional nuts. With Class 2B thread fit and coarse threading, these fasteners maintain secure connections even under vibration stress, making them ideal for heavy-duty industrial fasteners in manufacturing equipment, telecommunications infrastructure, and transportation systems where reliability is paramount.
Specification Summary & Compliance
These press-fit nuts feature precision 4-40 UNC coarse threads with Class 2B thread fit tolerance for consistent performance. The hex flange measures 3/16" width with 0.01" thickness, designed for minimum 0.04" panel thickness using No. 20 drill bit (0.161" diameter). Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring full regulatory compliance for industrial applications worldwide.
