S-95479A127 5/8"-18 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide steel construction for extended service life in demanding environments
• Precise thread engagement with Class 2B fit ensuring reliable, vibration-resistant connections in critical assemblies
• High-strength performance meeting Grade 5 requirements for heavy-duty industrial applications
• Optimized torque transmission through standard external hex drive design for efficient installation
• Fine thread advantage with 5/8"-18 UNF spacing providing superior clamping force and adjustment precision
• Regulatory compliance assurance with RoHS 3 and REACH adherence for global manufacturing compatibility
• Standardized dimensions per ASME B18.2.2 specification ensuring interchangeability and replacement ease

Professional Applications & Engineering Value

This Grade 5 Black Oxide Steel Hex Nut delivers exceptional engineering value through its UNF fine threading and Class 2B thread fit, specifically engineered to address vibration-induced loosening in heavy machinery, automotive assemblies, and structural frameworks. The black oxide surface treatment provides substantial corrosion protection while maintaining dimensional stability under high tensile loads. Manufacturing professionals benefit from the ASME B18.2.2 compliance which guarantees consistent performance in industrial fastening systems requiring precise torque values and reliable thread engagement. The right-hand 5/8"-18 thread configuration ensures compatibility with standard components while the external hex drive facilitates rapid installation with common tools.

Specification Summary & Compliance

Manufactured to ASME B18.2.2 specifications with Class 2B thread fit tolerance for precision engagement. The 5/8"-18 UNF fine thread configuration meets standardized dimensional requirements (15/16" width, 35/64" height) for consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications. Grade 5 strength classification certifies mechanical properties for demanding fastening requirements.