S-93083A119 9/16"-12 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that bites into mating surfaces to prevent loosening under dynamic loads
• Enhanced load distribution with 1 3/16" flange diameter that reduces surface pressure and prevents damage to connected materials
• Reliable corrosion protection from black-oxide steel finish that provides durable surface resistance in industrial environments
• Quick installation efficiency with standard external hex drive design compatible with common wrenching tools
• Precise thread engagement through Class 2B thread fit ensuring consistent performance and reduced cross-threading risks
• Secure locking performance with right-hand UNC coarse threads maintaining clamp force in high-vibration applications
• Environmental compliance assurance meeting REACH and RoHS 3 standards for safe use across regulated industries

Professional Applications & Engineering Value

This black-oxide steel flange lock nut delivers critical vibration resistance in demanding industrial applications where secure fastening is paramount. The serrated locking technology creates permanent resistance to rotational loosening, making it ideal for machinery, automotive assemblies, and structural frameworks subjected to constant motion or impact. The 1 3/16" flange diameter provides superior load distribution, eliminating the need for separate washers while protecting sensitive surfaces from damage. Engineered with UNC coarse threads and Class 2B thread fit, this flange nut ensures reliable engagement even in challenging alignment conditions. The external hex drive design accommodates standard tools for efficient installation in confined spaces, while the black-oxide finish offers durable protection against corrosion in various operating environments.

Specification Summary & Compliance

This flange lock nut features 9/16"-12 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and reliable performance. The manufacturing complies with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental responsibility. Critical dimensions include 1 3/16" flange diameter, 7/8" width across flats, and 1/2" height for standardized application across industrial fastener systems. The right-hand thread direction and external hex drive conform to industry-standard installation practices.