S-94640A406 5/8"-18 Weld Nuts

Key Features & Benefits at a Glance

• Exceptional strength and durability from 4130 Alloy Steel construction, ideal for heavy-duty industrial environments
• Precise left-hand threading prevents loosening in counter-rotational applications, enhancing operational safety
• Class 2B thread fit ensures smooth assembly and reliable engagement with mating components
• Optimized for 1-3/8" tube OD with 0.095" wall thickness compatibility, providing perfect fitment for tubing systems
• Full RoHS 3 and REACH compliance meets stringent environmental regulations for global manufacturing
• Fine UNF threading (5/8"-18) delivers superior vibration resistance and load distribution
• 1-1/2" height design offers ample welding surface area for secure, permanent installations

Professional Applications & Engineering Value

This left-hand thread tube end weld nut addresses critical challenges in rotating machinery and hydraulic systems where standard right-hand threads would naturally loosen. The 4130 Alloy Steel construction provides exceptional tensile strength and fatigue resistance, making it ideal for high-stress applications in aerospace, automotive, and industrial equipment. The UNF fine threading and Class 2B fit ensure precise engagement with mating components, reducing the risk of cross-threading while maintaining consistent clamping force. Engineered specifically for 1-3/8" tube OD applications, this weld nut delivers reliable performance in hydraulic lines, structural tubing, and pneumatic systems where vibration resistance and secure fastening are paramount.

Specification Summary & Compliance

This precision tube end weld nut features 5/8"-18 UNF fine threading with Class 2B thread fit tolerance for optimal engagement. Manufactured to inch system standards with left-hand thread direction and 1-1/2" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Designed specifically for 1-3/8" tube OD with 0.095" wall thickness compatibility.