S-90759A350 3/8"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating, extending service life in harsh industrial environments
• Maximum torque application enabled by the 12-point external drive design, reducing tool slippage and improving installation efficiency
• Exceptional vibration resistance due to the integrated flange that distributes load evenly and prevents loosening under dynamic stresses
• Precise thread engagement with Class 3B fit and UNF fine threads, ensuring reliable, leak-proof connections in critical assemblies
• Wide bearing surface from the 5/8" flange diameter, minimizing surface damage and providing stable clamping force
• Durable construction with standard hex nut profile and right-hand threading, compatible with common tools and applications

Professional Applications & Engineering Value

This black-oxide steel flange nut is engineered to address common industrial fastening challenges, such as vibration-induced loosening and corrosion in demanding settings. The UNF fine threading (3/8"-24) and Class 3B thread fit deliver precise, secure connections that withstand high cyclic loads, making it ideal for automotive, machinery, and aerospace components. The integrated flange eliminates the need for separate washers, streamlining assembly while the external 12-point drive allows for high-torque installation with standard tools, reducing downtime and enhancing operational reliability in high-stress applications.

Specification Summary & Compliance

This flange nut adheres to UNF thread standards with a Class 3B thread fit for tight tolerances and superior thread engagement. Dimensions include a flange diameter of 5/8", thread size of 3/8"-24 fine, and right-hand threading. Manufactured from black-oxide steel, it meets industry requirements for durability and is compliant with RoHS and REACH environmental standards, ensuring safe use in various industrial sectors.