S-94640A204 7/16"-20 Weld Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance with left-hand UNF fine threading that prevents loosening in high-stress applications
• Exceptional durability from 4130 alloy steel construction, offering high strength-to-weight ratio for demanding environments
• Precision tube fitting designed specifically for 7/8" OD tubing with 0.083" wall thickness for secure, leak-resistant connections
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy assembly
• Optimized weldability through partial threading design that maintains structural integrity during welding operations
• Enhanced safety compliance meeting RoHS 3 and REACH environmental standards for industrial applications
• Left-hand thread security providing specialized counter-rotation protection in rotating machinery applications

Professional Applications & Engineering Value

This 4130 alloy steel tube end weld nut delivers critical engineering solutions for industrial tube systems requiring left-hand UNF fine threading. The specialized 7/16"-20 UNF left-hand thread configuration provides essential counter-rotation security in machinery where reverse-thread applications prevent accidental disassembly. Engineered with partial threading, this weld nut maintains material strength at the welding interface while the Class 2B thread fit ensures consistent engagement in tube fitting applications. The 4130 alloy steel composition offers excellent weldability and fatigue resistance, making it ideal for aerospace components, hydraulic systems, and precision industrial equipment where vibration resistance and reliable performance under thermal cycling are paramount.

Specification Summary & Compliance

This tube end weld nut features 7/16"-20 UNF left-hand fine threading with Class 2B thread fit tolerance, ensuring precise engagement and consistent performance. The nut is manufactured to standard inch measurements with a thread length of 1-1/8" and overall height of 1-1/2", designed specifically for 7/8" OD tubing with 0.083" wall thickness. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, meeting current industrial safety and regulatory requirements for hazardous substance restrictions.