S-94640A159 7/16"-20 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
- Exceptional strength and durability from 4130 Alloy Steel construction, ideal for high-stress industrial environments
- Precise left-hand threading (7/16"-20 UNF) prevents loosening in reverse-rotation applications, enhancing operational safety
- Reliable Class 2B thread fit ensures smooth assembly and consistent performance with standard mating components
- Optimized for 7/8" tube systems with 0.058" wall thickness compatibility, providing secure connections in fluid and gas handling
- Partially threaded design allows for controlled engagement and easier alignment during welding installation
- Full regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and global market acceptance
- Generous 1 1/8" thread length offers ample engagement for secure fastening in demanding applications
Professional Applications & Engineering Value
This left-hand thread tube end weld nut provides critical engineering solutions for applications requiring reverse-thread security, such as rotating machinery, hydraulic systems, and aerospace components where standard right-hand threads might loosen under vibration. The 4130 Alloy Steel construction delivers superior tensile strength and fatigue resistance, while the UNF fine threading and Class 2B thread fit ensure precise engagement with mating components. Specifically engineered for 7/8" OD tubing with 0.058" wall thickness, this weld nut maintains integrity in high-pressure environments. The partially threaded design facilitates proper positioning before welding, reducing installation time and improving joint reliability in industrial fabrication and maintenance operations.
Specification Summary & Compliance
This tube end weld nut features 7/16"-20 UNF left-hand fine threading with Class 2B thread fit per UNF standards, ensuring dimensional accuracy and interchangeability. The 1 1/8" thread length and 1 3/8" overall height provide optimal engagement dimensions. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance and material safety for industrial applications worldwide.
