S-90594A040 1/4"-28 Weld Nuts

Key Features & Benefits at a Glance

• Superior weld integrity with rectangular base design providing maximum contact surface for stronger, more reliable welded connections
• Precision thread engagement with Class 1B thread fit ensuring smooth assembly and reduced cross-threading risks in high-volume production
• Optimized dimensional stability featuring 5/16" barrel diameter and 3/4" base length for consistent positioning and alignment during welding operations
• Enhanced corrosion resistance through high-quality steel construction maintaining structural integrity in demanding industrial environments
• Fine thread advantage with 1/4"-28 UNF right-hand thread offering superior vibration resistance and clamping force retention
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across global manufacturing applications
• Time-saving installation with standard barrel profile enabling quick positioning and reducing overall assembly labor costs

Professional Applications & Engineering Value

This rectangular weld nut delivers exceptional value in industrial applications where permanent threaded connections are critical. The steel construction combined with UNF fine threading provides superior resistance to vibration loosening, making it ideal for automotive frames, heavy machinery, and structural steel assemblies. The rectangular base design distributes stress evenly across welded surfaces, preventing distortion and ensuring long-term joint integrity. With its Class 1B thread fit, this weld nut facilitates smooth bolt engagement in high-production environments while maintaining precise alignment through the 5/16" barrel diameter and 3/4" base length dimensions. This engineering solution addresses common welding challenges by providing consistent performance in automated assembly lines and manual welding operations alike.

Specification Summary & Compliance

This weld nut features Class 1B thread tolerance with 1/4"-28 UNF fine thread specification and right-hand thread direction. Manufacturing complies with inch system standards, featuring a barrel diameter of 5/16", barrel height of 21/64", and base dimensions of 3/4" length × 1/2" width × 1/16" thickness. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (including 219 SVHC substances as of 07/08/2021), ensuring environmental regulatory adherence for global industrial applications.