S-93975A200 5/16"-18 ASME B1.1 Weld Nuts

Key Features & Benefits at a Glance

• Superior welding stability with square shape design that prevents rotation during installation and provides maximum contact surface
• Exceptional thread reliability with Class 2B thread fit ensuring smooth engagement and reduced cross-threading risks
• Optimized collar dimensions (15/32" diameter, 0.063" height) for consistent weld penetration and structural integrity
• Heavy-duty steel construction offering excellent strength and durability in demanding industrial environments
• Precision UNC coarse threading (5/16"-18) for faster assembly and reduced susceptibility to debris accumulation
• Comprehensive standards compliance including ASME B1.1 for guaranteed dimensional accuracy and performance
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe usage across global markets

Professional Applications & Engineering Value

This square weld nut delivers exceptional value in industrial applications where vibration resistance and permanent fastening are critical. The steel construction combined with UNC coarse threads provides reliable performance in heavy machinery, structural frameworks, and automotive assemblies where weld integrity cannot be compromised. The precisely engineered 15/32" collar diameter and 0.063" collar height ensure optimal heat distribution during welding, preventing distortion while maintaining thread accuracy. Designed specifically for 31/64" hole diameter applications, this nut eliminates the need for additional fastening components, streamlining assembly processes in manufacturing, construction, and equipment maintenance sectors where right-hand threading and coarse thread spacing enhance installation efficiency.

Specification Summary & Compliance

This square weld nut maintains Class 2B thread fit tolerance per ASME B1.1 standards, ensuring precise dimensional accuracy for the 5/16"-18 UNC coarse thread configuration. Manufacturing complies with ASME B1.1 specifications for thread form and dimensional requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial components. The right-hand thread direction and coarse thread spacing adhere to established inch system fastening conventions for reliable interoperability with standard components.