S-91094A112 1/4"-28 Flange Nuts

Key Features & Benefits at a Glance

• Maximum Load Distribution - The 19/32" flange diameter spreads clamping force over a wider area, reducing surface pressure and preventing material damage in assembled components.
• Superior Vibration Resistance - Integrated flange design combined with UNF fine threading creates a more secure, vibration-proof connection that maintains integrity under dynamic loads.
• Exceptional Strength Performance - Grade 8 steel construction delivers high tensile strength for demanding applications where fastener failure is not an option.
• Precision Thread Engagement - Class 2B thread fit ensures smooth installation and consistent torque values while maintaining secure fastening.
• Enhanced Installation Efficiency - Standard external hex drive profile allows for quick installation using common wrench tools, reducing assembly time.
• Environmental Compliance Assurance - Meets both REACH and RoHS 3 standards, ensuring safe use in regulated industries and international markets.
• Dimensional Consistency - Manufactured to inch system specifications with precise 1/4"-28 UNF threading for reliable interchangeability and replacement.

Professional Applications & Engineering Value

This Grade 8 steel flange nut addresses critical engineering challenges in heavy-duty applications where vibration loosening and high stress conditions compromise fastener integrity. The combination of UNF fine thread configuration and integrated flange creates a dual-action locking mechanism that resists rotational forces in machinery, automotive, and construction equipment. The 19/32" flange diameter provides superior bearing surface distribution, preventing joint fatigue in sheet metal assemblies and structural frameworks. Engineered for external hex drive compatibility, it enables efficient installation in confined spaces while maintaining the high torque capacity required for critical connections. The right-hand thread direction and Class 2B thread fit ensure predictable performance across repetitive assembly operations, making it ideal for manufacturing environments requiring consistent, reliable fastening solutions.

Specification Summary & Compliance

This flange nut features precision 1/4"-28 UNF fine threads with Class 2B thread fit tolerance, manufactured to inch system standards. The external hex drive measures 7/16" across flats with a 15/64" height and incorporates a 19/32" diameter flange at 0.06" thickness. The component is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.