S-94640A224 1/2"-20 Weld Nuts

Key Features & Benefits at a Glance

• Enhanced vibration resistance with 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 system integration with exact 1" OD and 0.058" wall thickness compatibility
• Reliable thread engagement through Class 2B thread fit ensuring consistent assembly performance
• Optimized installation efficiency with partial threading design for easier welding positioning
• Long-term corrosion resistance maintained through compliant surface treatment and material properties
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This left-hand tube end weld nut solves critical reverse-threading requirements in hydraulic systems, pneumatic assemblies, and rotating machinery where standard right-hand threads would naturally loosen. The 4130 alloy steel construction delivers exceptional tensile strength and fatigue resistance, particularly valuable in high-vibration environments like automotive manufacturing and heavy equipment. With its UNF fine threading and Class 2B thread fit, this partially threaded nut ensures precise alignment and secure fastening for 1" tube OD applications, while the specific 0.058" tube wall thickness compatibility prevents deformation during welding operations. The combination of reverse threading and robust material properties makes this component ideal for safety-critical connections where unintentional disassembly must be prevented.

Specification Summary & Compliance

This tube end weld nut features 1/2"-20 UNF left-hand fine threading with Class 2B thread fit per unified thread standards, ensuring precise dimensional accuracy. The 1 1/4" thread length and 1 1/2" height provide optimal engagement for tube fitting applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental compliance for industrial distribution and use. The component is engineered specifically for 1" OD tubing with 0.058" wall thickness compatibility.