S-91855A440 8-32 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments
• Reliable thread engagement with Class 2B thread fit ensuring consistent fastening performance
• Quick installation through external hex drive design compatible with standard tools
• Enhanced durability from coarse UNC threading that resists vibration loosening
• Environmental compliance meeting RoHS 3 and REACH standards for industrial safety
• Optimal coverage with standard cap profile providing complete thread protection
• Precision dimensions (5/16" width, 11/32" height) for perfect fit in assembly applications

Professional Applications & Engineering Value

This 8-32 UNC cap nut delivers exceptional engineering value through its 18-8 stainless steel composition and Class 2B thread fit, addressing critical industrial fastening challenges. The corrosion-resistant material prevents degradation in moisture-prone environments, while the coarse thread design maintains secure connections under vibration stress. The external hex drive enables rapid installation with standard wrenches, reducing assembly time in manufacturing, machinery, and equipment applications. The cap nut profile provides both aesthetic finishing and protection against thread damage, making it ideal for visible assemblies in automotive, marine, and industrial equipment where both performance and appearance matter.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 5/16" width and 11/32" height, this cap nut features UNC coarse threading with Class 2B thread fit for consistent performance. The right-hand thread direction and 5/32" thread depth ensure proper engagement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial components.