S-94640A201 7/16"-20 Weld Nuts

Key Features & Benefits at a Glance

• Exceptional strength and durability from 4130 alloy steel construction, ideal for high-stress industrial and aerospace environments.
• Precise left-hand threading with 7/16"-20 UNF fine thread ensures secure, reverse-direction fastening to prevent loosening under vibration.
• Reliable thread engagement with Class 2B fit for consistent performance and reduced risk of cross-threading during assembly.
• Optimized for 7/8" tube OD applications, providing a secure fit for tubing with 0.065" wall thickness in fluid and pneumatic systems.
• Partially threaded design allows for easier alignment and welding, saving installation time and improving workflow efficiency.
• Full compliance with RoHS 3 and REACH regulations, ensuring environmental safety and suitability for global industrial markets.
• Corrosion-resistant properties of 4130 steel enhance longevity in demanding conditions, reducing maintenance needs.

Professional Applications & Engineering Value

This left-hand tube end weld nut is engineered to address critical challenges in industrial and aerospace fastening systems where reverse threading prevents unintended loosening from rotational forces. Crafted from 4130 alloy steel, it offers superior tensile strength and fatigue resistance, making it ideal for high-vibration environments like hydraulic tubing, machinery, and structural assemblies. The partially threaded and UNF fine thread design ensures precise alignment and secure attachment to 7/8" OD tubes, minimizing leakage risks in fluid transport applications. Its Class 2B thread fit guarantees consistent torque performance, streamlining installation while meeting rigorous quality standards for heavy-duty weld nuts in compliance-driven sectors.

Specification Summary & Compliance

This tube end weld nut features a 7/16"-20 UNF left-hand thread with Class 2B fit and 1" thread length, designed for tubes with 7/8" OD and 0.065" wall thickness. It adheres to standardized threading specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.