S-94674A490 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 requiring no additional tools or hardware for faster assembly
- Superior corrosion resistance from 18-8 stainless steel construction ensuring long-term reliability in harsh industrial environments
- Optimized for thin panels with 0.02" flange thickness providing stable retention in minimum 0.062" panel thickness applications
- Reliable thread engagement through Class 2B UNC coarse threads offering consistent performance in vibration-prone settings
- Easy installation alignment with hex flange design allowing standard wrench access during press-fit operations
- Environmental compliance assurance meeting REACH and RoHS 3 standards for global manufacturing requirements
- Precision fit with No. 20 drill bit (0.161" diameter) specification ensuring proper interference fit for permanent installations
Professional Applications & Engineering Value
This 4-40 UNC press fit nut delivers critical engineering solutions for thin panel applications where traditional fastening methods prove inadequate. The 18-8 stainless steel construction provides exceptional corrosion resistance while the hex flange design ensures secure mounting without requiring through-bolting. The coarse thread configuration maintains reliable performance in high-vibration environments common in electronics enclosures, automotive assemblies, and industrial control panels. With precise press-fit installation specifications, this nut eliminates the need for welding or adhesives, reducing assembly time while providing permanent, vibration-resistant fastening in sheet metal and thin-gauge materials.
Specification Summary & Compliance
This press-fit nut features 4-40 UNC coarse threading with Class 2B thread fit tolerance for consistent engagement. Manufactured to precise dimensional specifications including 0.058" height and 3/16" flange width with right-hand thread direction. Compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards. Designed for installation in panels with 0.062" minimum thickness using No. 20 drill bit (0.161" diameter) for proper interference fit.
