S-94640A407 3/4"-16 Weld Nuts

Key Features & Benefits at a Glance

• Exceptional vibration resistance through left-hand threading that prevents loosening in rotating equipment applications
• Superior strength and durability from 4130 alloy steel construction for heavy-duty industrial environments
• Precise thread engagement with Class 2B fit ensuring reliable, consistent fastening performance
• Optimized for tubing systems with perfect compatibility for 1-3/8" OD tubing and 0.095" wall thickness
• Full-threaded design provides maximum thread contact and load distribution across the entire 1-7/8" height
• Fine UNF threading delivers enhanced clamping force and superior resistance to vibration loosening
• Environmental compliance assurance with RoHS 3 and REACH compliance for global industrial applications

Professional Applications & Engineering Value

This 3/4"-16 UNF left-hand thread tube end weld nut solves critical challenges in industrial tubing systems where reverse rotation is a concern. The 4130 alloy steel construction provides exceptional tensile strength and fatigue resistance, making it ideal for high-stress applications in aerospace, hydraulic systems, and heavy machinery. The left-hand threading specifically addresses applications involving counter-rotating components, preventing unintended loosening while maintaining secure connections. With its Class 2B thread fit and fine UNF threading, this weld nut ensures precise alignment and maximum thread engagement for tubing systems requiring 1-3/8" OD compatibility. The fully threaded design across the entire 1-7/8" height distributes mechanical loads evenly, reducing stress concentrations and extending service life in demanding industrial environments.

Specification Summary & Compliance

This tube end weld nut features precision 3/4"-16 UNF fine threading with Class 2B thread fit according to Unified Thread Standard specifications. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets. The nut is specifically engineered for 1-3/8" OD tubing with 0.095" wall thickness, maintaining dimensional accuracy throughout the 1-7/8" height for consistent welding performance and reliable assembly integration.