S-90759A500 1/2"-13 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating for extended service life in harsh industrial environments
• Enhanced load distribution through 53/64" flange diameter that reduces surface pressure and prevents material damage
• Precision thread engagement with Class 3B fit ensuring reliable, vibration-resistant connections in critical applications
• High-torque capability via external 12-point drive design allowing superior wrench access and installation efficiency
• Quick assembly advantage with coarse UNC thread spacing that speeds up installation while maintaining secure fastening
• Integrated washer function eliminating the need for separate washers, saving time and reducing component count
• Standard hex profile compatibility ensuring interchangeability with common tools and existing assembly systems

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers exceptional engineering value in demanding industrial applications where vibration resistance and corrosion protection are critical. The 1/2"-13 UNC coarse thread configuration provides rapid installation in heavy machinery, structural steel frameworks, and automotive assemblies, while the integrated flange distributes clamping force evenly to prevent surface damage. The external 12-point drive enables high-torque application in confined spaces, making it ideal for maintenance operations and production lines where access is limited. Manufactured from durable steel with black-oxide surface treatment, this nut maintains performance in exposed environments while meeting the rigorous demands of construction equipment, industrial manufacturing, and transportation applications where reliability cannot be compromised.

Specification Summary & Compliance

This flange nut features Class 3B thread fit precision with UNC coarse thread spacing (1/2"-13) and right-hand thread direction. Manufactured to inch system standards with standard hex profile (9/16" width) and 33/64" height. The 53/64" flange diameter and 0.13" thickness provide optimal load distribution. Complies with industrial fastening specifications and contains materials meeting RoHS and REACH environmental standards for safe usage across global markets.