S-90502A410 5/8"-11 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced Bearing Surface: Extra-wide thin profile distributes clamping force more evenly, reducing the risk of material damage in soft substrates
• Reliable Thread Engagement: Class 2B coarse threads provide superior vibration resistance and easier assembly in high-vibration industrial environments
• Optimized Strength-to-Weight Ratio: Grade 2 steel construction delivers dependable mechanical performance while maintaining material efficiency
• Simplified Installation: Standard 1 1/16" external hex drive accommodates common wrench sizes for faster assembly and maintenance
• Environmental Compliance: RoHS 3 and REACH compliance ensures safe handling and meets international regulatory standards
• Interchangeable Compatibility: 5/8"-11 UNC thread specification guarantees seamless integration with standard coarse-threaded components
• Space-Efficient Design: 23/64" low-profile height enables use in confined spaces where standard nuts cannot fit

Professional Applications & Engineering Value

This Grade 2 steel hex nut with extra-wide thin profile addresses critical engineering challenges in heavy-duty industrial applications. The 5/8"-11 UNC coarse thread configuration combined with Class 2B thread fit ensures reliable performance in high-vibration machinery, construction equipment, and structural assemblies where thread stripping and loosening are common concerns. The external hex drive design provides maximum torque transmission during installation, while the expanded bearing surface prevents embedding in softer materials like aluminum or composite structures. Manufactured from carbon steel, this fastener maintains structural integrity under repeated stress cycles, making it ideal for maintenance-critical applications requiring frequent disassembly and reassembly.

Specification Summary & Compliance

This hex nut features precision Class 2B thread fit per UNC standards with 5/8"-11 coarse thread spacing and right-hand thread direction. Dimensional specifications include 1 1/16" width across flats and 23/64" height. The component is manufactured to Grade 2 strength classification and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.