S-94640A480 5/8"-18 Weld Nuts

Key Features & Benefits at a Glance

• Superior strength-to-weight ratio from 4130 alloy steel construction, providing exceptional durability in demanding industrial environments
• Precise Class 2B thread fit ensures smooth engagement and reliable fastening performance with mating components
• Fine UNF threading (5/8"-18) delivers enhanced vibration resistance and superior sealing capabilities for tube applications
• Full 1-1/2" threading length provides maximum engagement surface for secure, permanent installations
• Optimized for 1-1/8" tube OD compatibility with 0.058" wall thickness, ensuring perfect fitment in hydraulic and pneumatic systems
• Full regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Right-hand threading design offers standard installation convenience while maintaining consistent torque performance

Professional Applications & Engineering Value

This 5/8"-18 UNF tube end weld nut delivers critical engineering solutions for industrial fluid systems requiring reliable sealing and structural integrity. The 4130 alloy steel construction provides exceptional tensile strength and fatigue resistance, making it ideal for high-pressure hydraulic lines, pneumatic systems, and heavy-duty tubing applications where vibration and thermal cycling are concerns. The fine UNF threading combined with Class 2B thread fit ensures leak-proof connections and prevents loosening under dynamic loads. Engineered specifically for 1-1/8" tube OD with 0.058" wall thickness, this fully threaded weld nut offers maximum weld surface area for permanent, high-strength installations in aerospace, automotive, and industrial machinery applications.

Specification Summary & Compliance

This tube end weld nut features 5/8"-18 UNF fine threading with Class 2B thread fit per UNF standards, ensuring precise dimensional accuracy and interchangeability. The 1-1/2" thread length provides complete threading engagement, while the right-hand thread direction follows industry convention. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance and material safety for global industrial applications. Specifically designed for 1-1/8" tube outer diameter with 0.058" wall thickness compatibility.