S-94640A202 1/2"-20 Weld Nuts

Key Features & Benefits at a Glance

• Enhanced vibration resistance through left-hand threading that prevents loosening in rotating equipment applications
• Superior strength-to-weight ratio from 4130 alloy steel construction for demanding industrial environments
• Precise tube fitting compatibility specifically engineered for 7/8" OD tubing with 0.065" wall thickness
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance in assembly operations
• Optimized welding efficiency through partial threading design that simplifies installation while maintaining structural integrity
• Long-term environmental compliance meeting both RoHS 3 and REACH standards for global industrial applications
• Fine thread precision with 1/2"-20 UNF specification providing superior clamping force distribution

Professional Applications & Engineering Value

This left-hand thread tube end weld nut addresses critical challenges in industrial fluid systems and rotating machinery where conventional right-hand threads would naturally loosen under operational stresses. The 4130 alloy steel construction delivers exceptional fatigue resistance while the UNF fine threading provides superior sealing capability in high-pressure applications. Engineered specifically for 7/8" tubing systems, this partially threaded weld nut ensures optimal weld penetration without compromising thread integrity. The Class 2B thread fit guarantees consistent engagement in automated assembly processes, reducing installation time and improving manufacturing efficiency across aerospace, hydraulic, and precision mechanical systems.

Specification Summary & Compliance

This tube end weld nut features 1/2"-20 UNF left-hand fine threading with Class 2B thread fit per UNF standards, ensuring precise dimensional accuracy. The 1-1/4" thread length and 1-3/8" height provide optimal engagement for tube end applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and material safety. Designed specifically for 7/8" OD tubing with 0.065" wall thickness, this component meets rigorous industrial standards for welding applications and mechanical performance.