S-91078A235 5/8"-18 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• Space-saving thin profile (3/8" height) ideal for applications with limited clearance while maintaining full functionality
• Precision fine threading (5/8"-18 UNF) provides superior vibration resistance and secure fastening in dynamic applications
• Reliable Class 2B thread fit ensures smooth installation and consistent clamping force for assembly efficiency
• Grade 2 strength rating delivers dependable performance for general industrial and construction applications
• Standard external hex drive enables quick installation with common tools, reducing assembly time and labor costs
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This 5/8"-18 UNF thin hex nut delivers critical engineering advantages where space constraints and corrosion resistance are primary concerns. The zinc-plated steel construction provides essential protection against oxidation and environmental degradation, significantly extending service life in manufacturing equipment, structural assemblies, and outdoor applications. The fine UNF thread configuration offers superior resistance to vibration-induced loosening compared to coarse threads, making it ideal for machinery, automotive components, and precision equipment where maintaining torque integrity is crucial. The thin hex profile solves clearance issues in compact assemblies without compromising strength, while the Class 2B thread fit ensures consistent engagement with mating components for reliable performance across production runs.

Specification Summary & Compliance

This inch-system fastener features precision 5/8"-18 UNF fine threads with Class 2B tolerance for consistent fit and performance. Manufacturing complies with standard UNF thread specifications and Grade 2 strength requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial applications worldwide.