S-98886A735 3/8"-24 Hex Nuts

Key Features & Benefits at a Glance

• Extreme temperature performance - Maintains structural integrity from -50°F to 550°F for reliable operation in harsh thermal environments
• Superior chemical resistance - PEEK plastic construction provides excellent corrosion resistance without metal alternatives
• Precision thread engagement - Class 2B thread fit ensures consistent, reliable fastening with minimal play
• Optimized for fine-thread applications - 3/8"-24 UNF configuration delivers superior vibration resistance in dynamic assemblies
• Industry-standard compatibility - Standard hex profile and external hex drive enable easy installation with common tools
• Environmental compliance assurance - Meets REACH and RoHS 3 standards for use in regulated industries
• Dimensional consistency - 5/8" width and 1/4" height provide reliable fitment across production runs

Professional Applications & Engineering Value

This PEEK plastic hex nut delivers exceptional engineering value in applications where metal fasteners fail. The high-temperature PEEK material maintains mechanical properties up to 550°F while resisting chemical degradation from oils, solvents, and aggressive environments. The 3/8"-24 UNF fine thread configuration provides superior vibration resistance in machinery, aerospace, and automotive assemblies where loosening under dynamic loads is a concern. With Class 2B thread fit precision, engineers achieve consistent clamping force without galling or seizing common in metal threads. The black PEEK construction offers excellent UV resistance for outdoor applications while the external hex drive ensures compatibility with standard installation tools, reducing assembly time and tooling costs.

Specification Summary & Compliance

This hex nut features precision Class 2B thread fit with 3/8"-24 UNF fine thread specifications, ensuring dimensional accuracy per inch fastening standards. The component maintains 5/8" width and 1/4" height tolerances for consistent performance. Manufacturing complies with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, confirming environmental responsibility and regulatory compliance for global industrial applications. The right-hand thread direction and standard hex profile adhere to industry-accepted fastening conventions.