S-93776A421 1/4"-20 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 precision serrations that bite into surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection with 18-8 stainless steel construction for longevity in harsh industrial environments
- Integrated flange design eliminates need for separate washers, distributing clamp load over wider surface area
- Reliable thread engagement with Class 2B fit UNC coarse threads ensuring consistent performance and easy assembly
- External hex drive compatibility with standard 7/16" width for familiar installation using common tools
- Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
- Optimized dimensional stability with 15/64" height providing secure locking without excessive profile
Professional Applications & Engineering Value
This 18-8 stainless steel flange lock nut delivers critical vibration resistance where machinery reliability is paramount. The serrated locking mechanism creates permanent friction against mating surfaces, effectively countering rotational forces in automotive assemblies, industrial equipment, and structural frameworks. The UNC coarse thread configuration enables rapid installation while maintaining Class 2B thread fit precision. The corrosion-resistant properties of stainless steel make it ideal for outdoor applications, chemical processing environments, and marine equipment where moisture and corrosive elements threaten fastener integrity. The integrated flange design provides built-in load distribution, reducing surface damage and simplifying assembly processes in high-vibration scenarios.
Specification Summary & Compliance
Manufactured to precise dimensional standards including 1/4"-20 UNC coarse threads with Class 2B thread fit tolerance. Features external hex drive (7/16" width), 19/32" flange diameter, and 15/64" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial procurement requirements.
