S-90494A031 3/8"-16 Hex Nuts

Key Features & Benefits at a Glance

• Reduced weight and material usage with a thin profile design while maintaining full functionality
• Excellent corrosion resistance and durability from high-quality Grade 2 carbon steel construction
• Quick and easy installation with coarse UNC threads and standard external hex drive
• Secure and reliable thread engagement ensured by precise Class 2B thread fit tolerance
• Broad compatibility with standard 3/8"-16 UNC male threaded components
• Compliance with strict environmental regulations including RoHS 3 and REACH for global industrial use
• Space-saving design with compact 7/32" height ideal for applications with limited clearance

Professional Applications & Engineering Value

This 3/8"-16 UNC hex nut provides critical solutions for assembly challenges where space and weight are concerns. The thin profile hex nut design, manufactured from robust Grade 2 steel, offers significant material savings without compromising strength. Its coarse thread spacing enables rapid installation in high-volume production environments, reducing assembly time. The Class 2B thread fit ensures consistent performance with standard bolts, preventing cross-threading and ensuring vibration resistance in machinery, equipment frames, and structural applications. This combination of a right-hand threaded, external hex drive fastener makes it ideal for maintenance and manufacturing sectors requiring reliable, standardized inch fasteners.

Specification Summary & Compliance

This hex nut features 3/8"-16 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring dimensional accuracy and interchangeability. Dimensions include 9/16" width across flats and 7/32" height. The fastener meets Grade 2 strength classification and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for restricted substance-controlled industrial applications.