S-91884A235 3/8"-16 Cap Nuts

Key Features & Benefits at a Glance

• Superior machinability and strength from 2011 aluminum alloy for reliable performance in demanding applications
• Precise Class 2B thread fit ensures smooth assembly and secure fastening with standard UNC male threads
• External hex drive design provides excellent torque transmission and easy installation with common tools
• Corrosion-resistant aluminum construction offers durability without the weight of steel alternatives
• RoHS 3 compliance meets environmental regulations while maintaining machining performance
• Coarse UNC threading enables quick assembly and reduced cross-threading risks in industrial settings
• Standard cap nut profile provides finished appearance and protection for threaded ends

Professional Applications & Engineering Value

This 3/8"-16 UNC cap nut manufactured from 2011 aluminum delivers exceptional value in applications where weight reduction, corrosion resistance, and reliable fastening are critical. The Class 2B thread fit combined with coarse UNC threading ensures rapid assembly in production environments while minimizing the risk of cross-threading. The external hex drive allows for high torque application using standard wrenches, making it ideal for machinery, automotive, and electronic enclosures where aluminum's natural corrosion resistance eliminates the need for additional coatings. The capped design provides both aesthetic finishing and protection against thread damage in exposed applications.

Specification Summary & Compliance

This inch-system cap nut features 3/8"-16 UNC coarse threads with Class 2B fit for standard tolerance applications. Dimensions include 5/8" width across flats and 1/2" total height with 1/4" thread depth. Manufactured to UNC thread standards with right-hand thread direction and external hex drive. Compliant with RoHS 3 (2015/863/EU) under exemption 6(b)-II for lead as an alloying element in aluminum for machining purposes.