S-94640A205 1/2"-20 Weld Nuts

Key Features & Benefits at a Glance

• Exceptional strength and durability from 4130 Alloy Steel construction, ideal for demanding industrial environments
• Precise left-hand threading prevents accidental loosening in rotating machinery and specialized applications
• Class 2B thread fit ensures smooth assembly and reliable fastening performance with standard UNF components
• Optimized tube compatibility designed specifically for 7/8" OD tubing with 0.083" wall thickness
• Partial threading design provides secure engagement while minimizing material usage and weight
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
• Generous 1-1/4" thread length offers ample engagement for secure connections in critical assemblies

Professional Applications & Engineering Value

This 1/2"-20 UNF Left Hand Tube End Weld Nut delivers critical engineering solutions for industrial fluid systems, hydraulic assemblies, and pneumatic applications where reverse-thread security is paramount. The 4130 Alloy Steel construction provides superior tensile strength and fatigue resistance, addressing vibration-induced loosening in high-stress environments. The partially threaded design with Class 2B thread fit ensures precise mating with UNF fasteners while the specialized left-hand threading prevents unintended disassembly in rotating equipment. Engineered specifically for 7/8" tube OD applications, this weld nut maintains structural integrity in hydraulic lines, fuel systems, and industrial piping where reliable end connections are critical for system performance and safety.

Specification Summary & Compliance

This tube end weld nut features 1/2"-20 UNF fine threading with Class 2B thread fit tolerance, providing precise dimensional accuracy per UNF standards. The partially threaded configuration offers 1-1/4" thread length within the 1-1/2" overall height. Manufactured from 4130 Alloy Steel for optimal mechanical properties, the component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while meeting industrial fastener specifications for tube fitting applications with 7/8" OD and 0.083" wall thickness requirements.