S-94640A404 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
- Superior vibration resistance with left-hand threading that prevents loosening in rotating equipment applications
- Exceptional durability thanks to 4130 alloy steel construction that withstands high-stress industrial environments
- Precision tube connections with exact 1-1/8" tube OD compatibility and 0.095" wall thickness specification
- Reliable thread engagement through Class 2B fit UNF fine threading that ensures consistent performance
- Enhanced safety compliance with full RoHS 3 and REACH environmental standards adherence
- Optimized installation efficiency with 1-1/2" height providing ample surface for secure welding operations
- Specialized application suitability designed specifically for tube end connections requiring reverse-thread security
Professional Applications & Engineering Value
This left-hand thread tube end weld nut solves critical reverse-rotation challenges in hydraulic systems, pneumatic assemblies, and mechanical drive applications where standard right-hand threads would naturally loosen. The 4130 alloy steel construction delivers exceptional tensile strength and fatigue resistance, while the UNF fine threading with Class 2B fit ensures precise engagement that maintains integrity under constant vibration and load variations. Engineered specifically for 1-1/8" tube OD connections with 0.095" wall thickness compatibility, this weld nut provides reliable sealing and structural support in demanding industrial environments including aerospace, automotive, and heavy machinery 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 standards, ensuring precise dimensional accuracy and reliable performance. The nut maintains a consistent 1-1/2" height for optimal welding surface area and structural integrity. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, guaranteeing safe usage in regulated industrial applications while meeting stringent quality control requirements for critical connection points.
