S-94758A031 3/8"-16 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Integrated flange eliminates need for separate washers, speeding up assembly and reducing component count
• Heavy-duty external hex drive provides maximum torque transmission and secure fastening
• Coarse UNC threading ensures quick installation and reliable performance in vibration-prone applications
• Class 2B thread fit guarantees consistent engagement and smooth assembly with mating components
• Full compliance with RoHS 3 and REACH standards ensures environmental responsibility and global market acceptance
• 7/8" flange diameter distributes load effectively, preventing surface damage and maintaining joint integrity

Professional Applications & Engineering Value

This 3/8"-16 UNC flange nut delivers exceptional engineering value in demanding applications where corrosion resistance and vibration reliability are critical. The 18-8 stainless steel construction provides excellent protection against rust and chemical exposure, making it ideal for outdoor equipment, marine environments, and food processing facilities. The integrated 7/8" flange acts as a built-in washer, distributing clamping force over a wider area to prevent damage to soft materials and maintain secure connections under dynamic loads. The coarse UNC threading and Class 2B thread fit ensure rapid assembly and reliable performance in high-vibration environments such as automotive assemblies, machinery frames, and structural applications. This external hex drive design accommodates standard tools for easy installation and maintenance, while the heavy-duty construction ensures long-term reliability in industrial fastening systems.

Specification Summary & Compliance

This flange nut features 3/8"-16 UNC coarse threading with Class 2B thread fit for consistent engagement and reliable performance. The standard external hex drive (11/16" width) and standard hex nut profile ensure compatibility with common installation tools. Manufacturing complies with industry standards for dimensional accuracy, including the specified 7/8" flange diameter and 0.13" flange thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.