S-98892A133 3/8"-16 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread top lock technology that maintains secure fastening under dynamic loads
• Enhanced anti-loosening performance with serrated flange that bites into mating surfaces for permanent positioning
• Excellent corrosion resistance provided by 18-8 stainless steel construction for long service life in harsh environments
• Reliable coarse thread engagement with UNC 3/8"-16 threading that resists cross-threading and enables quick installation
• Optimized load distribution from the 3/4" flange diameter that reduces surface pressure and prevents material damage
• Industry-standard compatibility with Class 2B thread fit ensuring proper mating with standard male threads
• Secure external hex drive design allowing for high torque application with common wrench tools

Professional Applications & Engineering Value

This 18-8 stainless steel flange lock nut combines multiple locking technologies to address critical vibration-induced loosening in industrial applications. The distorted thread top lock creates consistent interference along the thread path, while the serrated flange provides additional resistance to rotation through surface penetration. Engineered with UNC coarse threads and Class 2B fit, this fastener delivers reliable performance in heavy machinery, automotive assemblies, and structural frameworks where constant motion and stress would compromise standard fasteners. The corrosion-resistant properties of stainless steel make it ideal for outdoor equipment, marine applications, and chemical processing environments where both locking security and material durability are essential.

Specification Summary & Compliance

This flange lock nut features 3/8"-16 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and proper mating compatibility. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Critical dimensions include a 3/4" flange diameter with 0.04" thickness and standard 9/16" width across flats for consistent performance in industrial applications requiring reliable vibration-resistant fastening solutions.