S-94450A528 7/8"-9 ANSI/ASME 18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life
• Reduced weight and material usage thanks to the thin profile design without compromising structural integrity
• Reliable left-hand thread engagement for specialized applications where standard right-hand rotation would cause loosening
• Quick and easy installation with coarse UNC threads and external hex drive, enabling efficient assembly with common tools
• Consistent, predictable performance ensured by Class 2B thread fit, providing optimal clearances for smooth operation
• Guaranteed dimensional interchangeability through compliance with ANSI/ASME 18.2.2 manufacturing standards
• Environmentally responsible sourcing and use with full RoHS 3 and REACH compliance, meeting strict international regulations

Professional Applications & Engineering Value

This 7/8"-9 UNC left hand thin hex nut is engineered to solve critical challenges in industrial assemblies where reverse-thread mechanisms are essential. The 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for marine, chemical processing, and outdoor equipment. Its thin hex nut profile allows for use in space-constrained applications while maintaining full external hex drive functionality for secure torquing. The coarse thread design ensures rapid installation and reduced cross-threading risks in high-vibration environments, such as rotating machinery and conveyor systems. By combining a left hand thread direction with a Class 2B thread fit, this component delivers reliable performance in specialized mechanical systems where standard fasteners would fail.

Specification Summary & Compliance

This nut features a 7/8"-9 UNC coarse thread with Class 2B thread fit per ANSI/ASME 18.2.2 standards, ensuring precise dimensional accuracy and interchangeability. The external hex measures 1 5/16" across flats with a height of 31/64". It is manufactured from 18-8 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries and global markets.