S-98001A140 5/16"-18 Weld Nuts

Key Features & Benefits at a Glance

• Enhanced Welding Stability with a rectangular 1 1/2" x 5/8" base for superior surface contact and reduced shifting during welding operations
• Space-Saving Low Profile Design with 5/64" barrel height for applications where clearance is limited without compromising structural integrity
• Reliable Coarse Thread Performance featuring 5/16"-18 UNC threads for quick assembly, reduced cross-threading risk, and consistent performance in high-vibration environments
• Precision Thread Fit with Class 2B tolerance ensuring smooth engagement with mating components and minimizing assembly time
• Durable Steel Construction providing excellent strength and corrosion resistance for long-term reliability in demanding industrial settings
• Optimized Barrel Design with 23/64" diameter for secure fit in 3/8" pre-drilled holes, enhancing alignment accuracy during installation
• Environmental Compliance Assurance meeting both RoHS 3 and REACH standards for safe use in regulated industries and global markets

Professional Applications & Engineering Value

This rectangular low profile weld nut solves critical challenges in metal fabrication and structural assembly where space constraints and vibration resistance are paramount. The steel construction combined with UNC coarse threading ensures reliable performance in automotive frames, machinery enclosures, and structural steel applications where repeated stress and thermal cycling occur. The rectangular base design distributes welding stress evenly across a wider surface area, preventing warping and maintaining thread alignment integrity post-welding. With its Class 2B thread fit, this weld nut eliminates play in assembled joints, reducing maintenance cycles in conveyor systems, industrial equipment, and construction frameworks where vibration resistance directly impacts operational safety and longevity.

Specification Summary & Compliance

Manufactured to standard inch system dimensions with Class 2B thread fit tolerance per UNC specifications. The right-hand coarse thread (5/16"-18 UNC) ensures compatibility with standard industrial components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards for industrial fasteners.