S-90759A150 1/4"-28 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with integrated flange design eliminating the need for separate washers
- Maximum torque transmission through 12-point external drive for high-tension applications
- Exceptional thread precision with Class 3B fit ensuring reliable, secure fastening in critical assemblies
- Enhanced corrosion protection from black-oxide steel finish for extended service life
- Optimized fine thread engagement (28 TPI) providing superior clamping force distribution
- Industry-standard compatibility with UNF thread specifications for seamless integration
- Reduced assembly time with standard hex profile allowing use with common wrench sets
Professional Applications & Engineering Value
This black-oxide steel flange nut delivers critical performance advantages in demanding industrial environments where vibration resistance and precise clamping force are paramount. The integrated flange distributes load over a wider surface area (7/16" diameter), preventing surface damage and maintaining joint integrity under dynamic loads. The 12-point external drive enables high-torque installation in confined spaces, while the Class 3B UNF fine threads ensure zero-backlash fastening in precision equipment, automotive systems, and heavy machinery. The corrosion-resistant black-oxide finish provides durable protection against industrial atmospheres, making these flange nuts ideal for manufacturing, aerospace, and transportation applications where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3B thread fit and UNF fine thread specifications (1/4"-28). Features precise dimensional control with 7/16" flange diameter, 5/16" width, and 19/64" height. Complies with ASME B18.2.2 dimensional requirements and RoHS/REACH environmental standards. The black-oxide steel construction meets industrial corrosion resistance requirements while maintaining consistent mechanical properties for reliable performance in critical applications.
