S-94640A359 3/4"-16 Weld Nuts

Key Features & Benefits at a Glance

• Enhanced durability with 4130 Alloy Steel construction, providing superior strength and resistance to wear in high-stress environments.
• Secure, precise assembly due to Class 2B thread fit, ensuring tight tolerances and reliable fastening for fine-threaded applications.
• Left-hand threading for specialized installations where reverse rotation is required, preventing accidental loosening in dynamic systems.
• Optimized for 1-1/4" OD tubes with 0.095" wall thickness, offering a perfect fit and reducing the risk of leaks or misalignment in tubing systems.
• Full 1-1/2" thread length for maximum engagement and load distribution, enhancing joint integrity under vibration or heavy loads.
• Compliance with RoHS 3 and REACH standards, ensuring environmental safety and meeting global regulatory requirements for industrial use.
• Fine UNF threading (3/4"-16) delivers higher torque accuracy and better sealing in pressurized or precision applications.

Professional Applications & Engineering Value

This 3/4"-16 UNF Left Hand Weld Nut is engineered from 4130 Alloy Steel to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion in tubing systems. Its left-hand fine threads and Class 2B fit provide exceptional precision, making it ideal for tube end applications in hydraulic systems, aerospace assemblies, and heavy machinery where reverse-thread security is essential. The nut’s compatibility with 1-1/4" OD tubes and 0.095" wall thickness ensures a leak-resistant connection, while the robust material withstands high temperatures and mechanical stress, reducing maintenance needs and downtime in demanding engineering environments.

Specification Summary & Compliance

This weld nut adheres to UNF fine thread standards (3/4"-16) with a Class 2B thread fit for precise dimensional accuracy and smooth assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial applications. Specifications include a thread length of 1-1/2", designed for use with 1-1/4" OD tubes and 0.095" wall thickness, providing reliable performance in regulated and high-performance sectors.