S-94846A535 5/8"-18 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Superior strength and reliability with Grade 5 classification, ensuring dependable performance in demanding applications
• Space-saving thin profile design (3/8" height) for installations with limited clearance while maintaining full functionality
• Precise thread engagement with Class 2B fit and UNF fine threads (5/8"-18), providing vibration resistance and secure fastening
• Standard compliance assurance meeting ASME B18.2.2 specifications for consistent quality and interchangeability
• Easy installation and removal with external hex drive and 15/16" width for standard wrench compatibility
• Environmental regulation compliance with RoHS 3 and REACH standards, suitable for regulated industries

Professional Applications & Engineering Value

This Grade 5 thin hex nut delivers exceptional engineering value through its optimized material and design characteristics. The zinc-plated steel construction provides critical corrosion protection in industrial and automotive environments where exposure to moisture, chemicals, and temperature variations is common. The UNF fine thread configuration (5/8"-18) offers superior vibration resistance compared to coarse threads, making it ideal for machinery, equipment assembly, and automotive systems where loosening under dynamic loads is a concern. The thin hex nut profile addresses space-constrained applications without compromising strength, while the external hex drive ensures straightforward installation with standard tools. Engineered to ASME B18.2.2 standards, this fastener provides reliable performance in heavy-duty applications where failure is not an option, from manufacturing equipment to transportation systems.

Specification Summary & Compliance

This hex nut features precise 5/8"-18 UNF fine threads with Class 2B thread fit for consistent engagement and reliable performance. Manufactured to ASME B18.2.2 specifications with dimensions of 15/16" width and 3/8" height. The fastener meets Grade 5 strength requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications worldwide.