S-94581A139 5/16"-18 Weld Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Optimized welding performance through low-profile rectangular design that provides stable contact surface and minimizes material distortion
• Precise thread engagement with Class 2B fit UNC coarse threads that facilitate faster assembly and reduce cross-threading risks
• Space-saving installation thanks to the low barrel profile (3/32" height) ideal for applications with limited clearance
• Enhanced structural integrity from the rectangular base (1 1/8" length) distributing load evenly across welded surfaces
• Reliable regulatory compliance meeting both RoHS 3 and REACH standards for safe use across global markets
• Perfect hole compatibility designed specifically for 3/8" mounting holes to ensure precise alignment during welding operations

Professional Applications & Engineering Value

This low-profile rectangular weld nut delivers exceptional engineering value where space constraints and corrosion resistance are critical. The 18-8 stainless steel construction provides excellent protection against rust and chemical exposure, making it ideal for industrial equipment, automotive frames, and structural assemblies exposed to moisture or corrosive elements. The rectangular base design offers superior weld surface contact compared to standard hex nuts, preventing rotation during high-vibration applications. With 5/16"-18 UNC coarse threads and Class 2B thread fit, this weld nut ensures quick installation and reliable performance in heavy-duty fastening scenarios where durability and precision are paramount for operational safety and reduced maintenance cycles.

Specification Summary & Compliance

This weld nut features precision Class 2B thread fit with 5/16"-18 UNC coarse threads in right-hand direction, manufactured to exacting dimensional standards including 23/64" barrel diameter and 3/32" barrel height. The rectangular base measures 1 1/8" length × 5/8" width with 9/64" thickness, engineered for optimal welding performance in 3/8" mounting holes. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.