S-90759A710 5/8"-18 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel construction, extending service life in harsh environments.
• Precise thread fit with Class 3B tolerance ensuring reliable, vibration-resistant connections in critical assemblies.
• Enhanced torque application via the 12-point external drive, allowing for secure tightening in confined spaces.
• Distributed load bearing from the 1-1/4" flange diameter, reducing surface pressure and preventing material damage.
• Fine thread spacing (UNF) provides improved adjustment accuracy and superior holding power under dynamic loads.
• Right-hand thread design compatible with standard industrial equipment, simplifying installation and maintenance.
• Durable standard hex profile ensures compatibility with common tools, streamlining workflow efficiency.

Professional Applications & Engineering Value

This black-oxide steel flange nut is engineered to address common industrial challenges such as vibration loosening and environmental degradation. The Class 3B thread fit and UNF fine thread profile deliver exceptional clamping force retention, making it ideal for heavy-duty machinery, automotive systems, and structural frameworks where reliability is paramount. The integrated flange eliminates the need for separate washers, reducing assembly time and part count while the 12-point external drive facilitates quick installation in tight access areas. Its corrosion-resistant finish ensures long-term performance in outdoor or chemically exposed settings, providing a cost-effective solution for precision thread fit requirements without compromising on durability.

Specification Summary & Compliance

This flange nut adheres to UNF thread standards with a Class 3B thread fit for high-precision applications. Dimensions include a 5/8"-18 thread size, 1-1/4" flange diameter, and 13/16" width. Manufactured from black-oxide coated steel, it meets industry specifications for fine thread spacing and right-hand threading. Compliant with RoHS and REACH environmental directives, ensuring safe use in regulated industries.