S-94640A470 1/2"-20 Weld Nuts

Key Features & Benefits at a Glance

• Superior weld integrity with 4130 Alloy Steel construction for excellent strength and fatigue resistance in demanding industrial environments
• Precise tube fitting designed specifically for 1-1/8" OD tubes with 0.058" wall thickness, ensuring secure connections and leak prevention
• Enhanced thread engagement through Class 2B thread fit and UNF fine threading (1/2"-20) for vibration resistance and reliable fastening performance
• Optimized welding process with partial threading design that maintains structural integrity while facilitating cleaner weld applications
• Right-hand thread direction with fine thread spacing for standard installation compatibility and superior clamping force distribution
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across global industrial applications
• Dimensional consistency with 1-1/4" thread length and 1-1/2" height for predictable performance in repetitive assembly operations

Professional Applications & Engineering Value

This 1/2"-20 UNF Tube End Weld Nut delivers exceptional engineering value in tube fabrication systems where reliable end connections are critical. The 4130 Alloy Steel composition provides superior strength-to-weight ratio, resisting deformation under high stress conditions common in hydraulic, pneumatic, and structural tubing applications. The partially threaded design allows for maximum weld surface contact while maintaining precise Class 2B thread fit integrity, eliminating common issues of thread contamination during welding operations. The UNF fine threading (1/2"-20) ensures vibration-resistant connections in dynamic environments, making these tube end nuts ideal for automotive, aerospace, and heavy equipment industries where failure prevention is paramount.

Specification Summary & Compliance

This tube end weld nut features 1/2"-20 UNF fine threads with Class 2B thread fit tolerance for precision engagement. The partially threaded configuration provides 1-1/4" thread length within the 1-1/2" height profile. Manufacturing complies with UNF thread standards and is engineered for 1-1/8" OD tubes with 0.058" wall thickness. The product fully meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations (including 223 SVHCs as of 01/17/2022), ensuring environmental and safety standards for industrial applications worldwide.