S-93776A431 1/4"-28 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision serrations that maintain locking force under dynamic loads
• Enhanced corrosion resistance with 18-8 stainless steel construction for demanding industrial environments
• Secure flange distribution with 19/32" diameter providing wider bearing surface to prevent surface damage
• Reliable fine thread engagement with 1/4"-28 UNF Class 2B threads ensuring precise fit and consistent clamping force
• Easy installation and removal using standard external hex drive compatible with common wrenching tools
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Durable mechanical performance with 0.1" flange thickness providing structural integrity under high stress conditions

Professional Applications & Engineering Value

This 18-8 stainless steel flange lock nut delivers critical vibration resistance in demanding applications through its precision serrations that bite into mating surfaces, preventing rotational loosening under dynamic loads. The UNF fine thread configuration (1/4"-28) provides superior thread engagement in thin materials and high-vibration environments like industrial machinery, automotive assemblies, and electrical enclosures. The integrated flange design eliminates need for separate washers while distributing clamp load over wider surface area, protecting soft materials and reducing assembly time. Manufactured from corrosion-resistant 18-8 stainless steel, this external hex drive locknut maintains performance in harsh operating conditions while ensuring compatibility with standard tooling.

Specification Summary & Compliance

This flange lock nut features Class 2B thread fit per UNF standards with right-hand fine threads (1/4"-28) ensuring precision engagement. The 19/32" flange diameter and 0.1" thickness provide optimal load distribution. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making it suitable for global industrial applications requiring restricted substance compliance.