S-90389A113 10-32 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life.
• Eliminates the need for a separate washer thanks to the integrated 1/2" flange, speeding up assembly and reducing part count.
• Excellent torque transmission and grip provided by the external hex drive, ensuring secure and reliable fastening.
• Precise and reliable thread engagement with Class 2B fine (UNF) threads, minimizing the risk of cross-threading and loosening under vibration.
• Enhanced load distribution from the 0.06" thick flange, helping to prevent surface damage and maintain joint integrity.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring suitability for global markets and sensitive applications.
• Broad compatibility with standard 10-32 UNF male threads in the inch system, simplifying sourcing and replacement.

Professional Applications & Engineering Value

This 10-32 UNF flange nut is engineered to solve critical challenges in demanding industrial settings. The core of its value lies in the 316 Stainless Steel material, which provides exceptional resistance to corrosion from chemicals, saltwater, and atmospheric exposure, making it a top choice for marine, chemical processing, and food-grade equipment. The integrated flange acts as a built-in washer, distributing clamp load over a wider area to protect soft or fragile mating surfaces and resist loosening from vibration—a common failure point in machinery and transportation. Combined with the precision of the Class 2B fine thread and the high-torque capability of the external hex drive, this nut delivers a fastening solution that is both highly durable and efficient to install, reducing maintenance cycles and improving overall assembly reliability.

Specification Summary & Compliance

This flange nut conforms to the Unified National Fine (UNF) thread standard with a 10-32 thread size and a Class 2B thread fit, ensuring dimensional accuracy and interchangeability. The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety standards for hazardous substances.