S-91627A116 5/16"-18 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
- Exceptional load-bearing capacity with Grade 8 strength class, ensuring reliable performance in high-stress industrial environments.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh or outdoor conditions.
- Integrated flange design with 11/16" diameter for even load distribution, reducing the risk of surface damage and loosening.
- Precise Class 2B thread fit on 5/16"-18 UNC coarse threads, enabling quick assembly and secure fastening without cross-threading.
- Standard external hex drive for compatibility with common wrenches, facilitating easy installation and removal in tight spaces.
- Robust steel construction combined with right-hand threading, delivering durability and consistent performance in repetitive applications.
Professional Applications & Engineering Value
This Grade 8 flange nut is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding settings. The zinc yellow-chromate plated steel provides a protective barrier against moisture and chemicals, ideal for automotive, machinery, and construction applications. Its UNC coarse thread and external hex drive allow for rapid installation with standard tools, minimizing downtime. The integrated flange acts as a built-in washer, distributing clamp load effectively to prevent joint failure and maintain integrity under extreme loads, making it a reliable choice for heavy-duty fastening in critical assemblies.
Specification Summary & Compliance
This flange nut adheres to UNC thread standards with a Class 2B thread fit for consistent engagement and dimensional accuracy. Manufactured from high-strength steel with zinc yellow-chromate plating, it meets industry specifications for Grade 8 mechanical properties. Compliant with RoHS and REACH directives, it ensures environmental safety and reliability in various industrial applications, supporting standards such as ASME for quality assurance.
