S-95508A100 1/4"-20 ASME B1.1 Weld Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
• Robust and secure fastening with a coarse UNC thread and Class 2B fit, providing excellent vibration resistance and ease of assembly.
• Optimized for welding applications featuring a hex shape and specific collar dimensions (13/32" diameter, 0.047" height) for stable placement and strong welds.
• Guaranteed dimensional accuracy and performance compliance with the ASME B1.1 standard, ensuring interchangeability and fit.
• Enhanced durability and industrial safety by being fully compliant with RoHS 3 and REACH regulations, free from hazardous substances.
• Simplified installation with a right-hand thread direction and design for a standard 27/64" hole diameter, speeding up production processes.
• Heavy-duty performance in a compact form (1/2" width, 3/16" height), ideal for space-constrained yet demanding applications.

Professional Applications & Engineering Value

This 1/4"-20 UNC hex weld nut is engineered to solve critical challenges in industrial assembly, where vibration resistance and corrosion prevention are paramount. The use of 18-8 Stainless Steel ensures it withstands corrosive environments, from outdoor machinery to chemical processing equipment, reducing maintenance needs. Its coarse UNC thread and Class 2B thread fit provide a reliable, secure connection that resists loosening under dynamic loads, making it ideal for automotive frames, structural steelwork, and heavy machinery. The hex shape and precise collar design facilitate accurate positioning during welding, minimizing errors and rework. By adhering to ASME B1.1 standards, this nut delivers consistent performance, ensuring seamless integration into existing inch-system assemblies and enhancing overall project efficiency and safety.

Specification Summary & Compliance

This weld nut features a 1/4"-20 UNC thread with a Class 2B thread fit, ensuring precise dimensional tolerances for reliable fastening. It complies with the ASME B1.1 standard for unified inch screws and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming it is free from restricted hazardous substances. Key dimensions include a collar diameter of 13/32", collar height of 0.047", and it is designed for use with a 27/64" hole diameter.