S-94640A364 5/8"-18 Weld Nuts
Weld Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced safety in rotating systems with left-hand threading that prevents loosening under counter-clockwise torque
- Superior fatigue resistance from 4130 alloy steel construction for demanding industrial environments
- Precise thread engagement with Class 2B fit ensuring reliable, vibration-resistant connections
- Optimized tube compatibility designed specifically for 1-1/4" OD tubing with 0.12" wall thickness
- Secure partial threading provides maximum weld surface area while maintaining full thread functionality
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
- Fine UNF thread spacing delivering superior clamping force and load distribution
Professional Applications & Engineering Value
This 4130 alloy steel tube end weld nut solves critical challenges in hydraulic, pneumatic, and structural tubing systems where reverse rotation is present. The left-hand UNF fine threading provides essential anti-rotation security in machinery with counter-clockwise operational forces, while the partially threaded design maximizes weld integrity by providing ample surface contact area. Engineered for 1-1/4" tube OD applications, this weld nut maintains precise alignment during installation and delivers exceptional vibration resistance in high-stress industrial environments. The combination of Class 2B thread fit and robust 4130 steel material ensures long-term reliability in critical fluid transfer and structural support systems where failure is not an option.
Specification Summary & Compliance
This tube end weld nut features 5/8"-18 UNF left-hand fine threading with Class 2B thread fit per Unified Thread Standard specifications. The partially threaded configuration provides 1-9/16" thread length with overall height of 1-7/8". Manufactured from 4130 alloy steel for optimal strength-to-weight ratio, this component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
