S-94640A369 3/4"-16 Weld Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance with left-hand threading that prevents loosening in rotating equipment applications
• Exceptional strength-to-weight ratio from 4130 alloy steel construction for demanding industrial environments
• Precise tube connection with specialized tube end design for perfect alignment on 1 1/4" OD tubing
• Reliable thread engagement with Class 2B fit ensuring consistent performance in high-stress applications
• Fine thread advantage providing better tension control and superior load distribution
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial use
• Optimized wall thickness compatibility engineered specifically for 0.12" tube walls

Professional Applications & Engineering Value

This tube end weld nut delivers critical engineering solutions for industrial applications where reverse rotation prevention is essential. The 4130 alloy steel construction provides exceptional tensile strength and fatigue resistance, making it ideal for hydraulic systems, pneumatic assemblies, and rotating machinery that require left-hand thread security. The UNF fine threading ensures precise load distribution across the entire 1 7/8" length, while the specialized tube end design maintains perfect concentricity with 1 1/4" OD tubing. This combination addresses common failure points in high-vibration environments, offering engineers a reliable fastening solution that withstands dynamic loads and prevents accidental disassembly in critical fluid and power transmission systems.

Specification Summary & Compliance

This 3/4"-16 UNF left-hand thread weld nut features Class 2B thread fit per Unified Thread Standard specifications, ensuring precise dimensional accuracy and reliable engagement. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, confirming its suitability for global industrial applications. Engineered specifically for 1 1/4" tube OD with 0.12" wall thickness compatibility, this fully threaded weld nut maintains consistent performance standards across inch-system measurement requirements.