S-92001A343 5/8"-18 Thumb Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh industrial environments
• Precise fine thread engagement with UNF 5/8"-18 Class 2B threads for secure, vibration-resistant fastening in critical applications
• Exceptional manual grip provided by the standard wing profile and 2 5/8" width for easy hand-tightening without tools
• Optimized load distribution through the 1 5/32" base diameter, minimizing surface stress and preventing material deformation
• Right-hand thread design for intuitive installation and removal, reducing assembly time and operator error
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
• Dimensional stability with 1 1/4" height providing consistent performance across repeated maintenance cycles

Professional Applications & Engineering Value

This 18-8 stainless steel thumb nut delivers exceptional value in applications requiring frequent adjustments or tool-free maintenance. The UNF fine thread configuration (5/8"-18) combined with Class 2B thread fit ensures precise engagement that resists loosening under vibration, making it ideal for machinery, electrical enclosures, and transportation equipment. The wing nut design with generous 2 5/8" width provides superior torque application without specialized tools, significantly reducing maintenance downtime. The corrosion-resistant properties of 18-8 stainless steel make this thumb nut suitable for outdoor applications, marine environments, and chemical processing facilities where durability and reliability are paramount.

Specification Summary & Compliance

This thumb nut features 5/8"-18 UNF fine threads with Class 2B thread fit per Unified Thread Standard specifications, ensuring precise dimensional accuracy and reliable performance. The component maintains RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current SVHC requirements, meeting international environmental and safety standards for industrial fasteners. Manufacturing follows strict quality controls for dimensional consistency across all critical parameters including base diameter (1 5/32"), width (2 5/8"), and height (1 1/4").