S-90670A240 1/4"-32 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 6061 aluminum construction, ideal for harsh environments without compromising structural integrity
• Exceptional precision engagement with UNEF extra fine threads and Class 2B fit, ensuring reliable, vibration-resistant connections
• Industry-standard compliance with ASME B18.2.2 specifications, guaranteeing dimensional accuracy and interchangeability
• Enhanced durability through standardized external hex drive design, allowing for high-torque applications with common tools
• Environmental responsibility with full RoHS 3 and REACH SVHC compliance, meeting strict international regulatory requirements
• Optimized weight efficiency using lightweight aluminum, reducing overall assembly mass without sacrificing strength
• Wide compatibility with right-hand threaded components in inch measurement systems, simplifying inventory and assembly processes

Professional Applications & Engineering Value

This 1/4"-32 UNEF extra fine thread hex nut delivers critical performance in precision assemblies where fine adjustment and vibration resistance are paramount. Manufactured from 6061 aluminum, it provides excellent strength-to-weight ratio while naturally resisting corrosion in industrial, marine, and electronic applications. The Class 2B thread fit ensures consistent engagement with mating components, preventing loosening under dynamic loads. Its standard external hex profile accommodates common wrenching tools for efficient installation in confined spaces. Particularly valuable in instrumentation, aerospace subassemblies, and optical equipment, this nut maintains dimensional stability across thermal cycles while meeting rigorous ASME B18.2.2 standards for reliable performance in critical fastening applications.

Specification Summary & Compliance

This hex nut features 1/4"-32 UNEF extra fine threads with Class 2B thread fit per ASME B18.2.2 specifications, ensuring precise dimensional tolerances for consistent performance. Manufacturing complies with ASME B18.2.2 standards for hexagonal nuts, with dimensions of 7/16" width and 7/32" height. The component is fully RoHS 3 compliant (2015/863/EU) under exemption 6(b)-II and REACH compliant (EC 1907/2006) regarding SVHC substances as of January 2023, meeting international environmental and safety regulations for industrial components.