S-93083A112 5/16"-24 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through serrated locking design that prevents loosening under dynamic loads
- Enhanced corrosion protection with black-oxide steel finish for extended service life in harsh environments
- Efficient installation with standard external hex drive and integrated flange that eliminates need for separate washer
- Precise thread engagement with Class 2B UNF fine threads ensuring reliable, secure fastening connections
- Optimized load distribution from 43/64" flange diameter that reduces surface pressure and material stress
- Regulatory compliance assurance meeting REACH and RoHS 3 standards for global industrial applications
- Time-saving assembly with combined locking and flange functions in a single component
Professional Applications & Engineering Value
This black-oxide steel flange lock nut delivers exceptional performance in high-vibration environments where fastener security is critical. The serrated locking mechanism beneath the flange bites into mating surfaces, creating permanent resistance against rotational loosening from machinery vibration, impact loads, or thermal cycling. The 5/16"-24 UNF fine threads with Class 2B fit provide superior thread engagement and clamping force distribution, while the integrated 43/64" flange replaces separate washers to distribute load over wider surface areas. Engineered for industrial applications including automotive assemblies, heavy equipment, and machinery where vibration resistance and corrosion protection are paramount, this nut maintains integrity through demanding service conditions.
Specification Summary & Compliance
This flange lock nut features 5/16"-24 UNF fine threads with Class 2B thread fit per Unified Thread Standard, ensuring precise dimensional accuracy and reliable mating with Class 2A external threads. The component is manufactured from black-oxide steel with standard hex profile (1/2" width) and external hex drive. Compliance includes REACH (EC 1907/2006) regarding substance restrictions and RoHS 3 (2015/863/EU) directives for hazardous materials, making it suitable for regulated industrial and commercial applications worldwide.
