S-90759A680 1/2"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel construction for extended service life in harsh environments
• Enhanced load distribution through 7/8" flange diameter that reduces surface pressure and prevents material damage
• High-torque capability with external 12-point drive design for secure installation in confined spaces
• Precision thread engagement with Class 3B UNF fine threads ensuring vibration resistance and reliable fastening
• Optimized mechanical strength through standard hex profile and 0.19" flange thickness for heavy-duty applications
• Industry-standard compatibility with right-hand UNF thread pattern for seamless integration into existing assemblies
• Reduced maintenance requirements due to durable black-oxide surface treatment resisting rust and degradation

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers exceptional performance in demanding industrial settings where vibration resistance and corrosion protection are critical. The UNF fine thread configuration with Class 3B fit maintains clamping force under dynamic loads, making it ideal for automotive assemblies, heavy machinery, and structural applications. The integrated flange design eliminates the need for separate washers while providing superior bearing surface contact. The external 12-point drive enables high-torque installation in confined spaces where standard wrenches cannot operate effectively. Engineered to withstand harsh operating conditions, this precision threaded nut ensures long-term reliability while reducing assembly time and maintenance costs.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3B thread fit for precision UNF fine threading (1/2"-20). Features standard inch system measurements including 7/8" flange diameter, 11/16" width, and 41/64" height. The black-oxide steel construction provides superior corrosion resistance while maintaining compliance with industrial fastening specifications. Right-hand thread direction ensures compatibility with standard assembly procedures. Product meets relevant industry standards for heavy-duty fasteners and manufacturing quality requirements.