S-94640A881 1/4"-28 Weld Nuts

Key Features & Benefits at a Glance

• Superior weld integrity with 4130 Alloy Steel construction, ensuring high strength and resistance to deformation under thermal stress during welding processes.
• Precise tube fitting designed specifically for 1/2" OD tubes with 0.058" wall thickness, providing a secure and leak-resistant connection in fluid and gas systems.
• Enhanced thread engagement through fully threaded UNF fine threading (1/4"-28), offering superior vibration resistance and load distribution in high-stress applications.
• Consistent assembly performance with Class 2B thread fit, enabling smooth installation and reliable torque control without galling or cross-threading risks.
• Long-term operational reliability with right-hand threading compatibility, ensuring seamless integration with standard industrial components and reducing maintenance downtime.
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, making it suitable for global supply chains and environmentally sensitive applications.
• Optimized space utilization with compact 1" height design, allowing efficient installation in confined tubing layouts while maintaining full thread length coverage.

Professional Applications & Engineering Value

Engineered for demanding tube connection systems, this 4130 Alloy Steel weld nut addresses critical challenges in hydraulic, pneumatic, and structural tubing assemblies. The fully threaded UNF fine threading (1/4"-28) combined with Class 2B thread fit ensures zero-tolerance alignment with mating components, eliminating fluid leakage points in high-pressure environments. Its specialized design for 1/2" OD tubes with 0.058" wall thickness provides uniform stress distribution, preventing tube deformation under cyclic loading. The right-hand thread direction facilitates quick installation in automated production lines, while the RoHS 3 and REACH compliance makes it ideal for aerospace, automotive, and industrial machinery where material traceability and environmental regulations are paramount.

Specification Summary & Compliance

This tube end weld nut maintains Class 2B thread fit per UNF standards (1/4"-28 fine thread) with full threading over 1" length. Manufacturing adheres to inch system specifications for tube OD (1/2") and wall thickness (0.058"). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restriction of hazardous substances in industrial applications.