S-93083A115 7/16"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Integrated flange design eliminates need for separate washers, reducing assembly time and component count while providing superior load distribution
• Corrosion-resistant black-oxide steel construction ensures long-term durability in demanding industrial environments
• Fine UNF thread profile (7/16"-20) delivers enhanced clamping force and superior resistance to vibrational loosening compared to coarse threads
• Class 2B thread fit guarantees consistent, reliable engagement with mating components while maintaining easy assembly
• Standard hex profile with external drive enables quick installation using common wrenching tools without specialized equipment
• Full regulatory compliance with REACH and RoHS 3 standards ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This black-oxide steel flange locknut addresses critical vibration-induced failure points in industrial machinery, automotive assemblies, and heavy equipment. The serrated locking mechanism creates permanent friction locks that outperform standard nuts in high-vibration environments, eliminating the need for secondary locking devices. The 15/16" flange diameter provides substantial bearing surface that distributes clamp load effectively, preventing surface damage and maintaining joint integrity. Engineered with UNF fine threads (7/16"-20), this fastener delivers superior resistance to loosening under cyclic loading conditions while the external hex drive ensures compatibility with standard tooling. Ideal for applications where reliability is non-negotiable, from manufacturing equipment to transportation systems requiring permanent fastening solutions.

Specification Summary & Compliance

This flange locknut features precision Class 2B thread fit according to UNF standards, ensuring consistent engagement with mating components. The black-oxide steel construction provides corrosion resistance while maintaining mechanical strength. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance and suitability for global industrial applications. Critical dimensions include 15/16" flange diameter, 11/16" width across flats, and 25/64" height for standardized installation requirements.