S-91030A037 7/8"-9 Flange Nuts
Flange Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Integrated flange design eliminates the need for separate washers, reducing assembly time and hardware costs
- Black-oxide steel construction provides superior corrosion resistance for extended service life in demanding environments
- UNC coarse threads with Class 2B fit ensure rapid installation and reliable vibration resistance in heavy machinery
- 1-3/4" flange diameter creates a wider bearing surface to prevent pull-through and distribute load effectively
- Standard external hex drive offers compatibility with common tools for straightforward installation and maintenance
- 1/4" flange thickness delivers enhanced structural integrity and clamping force for critical connections
- RoHS 3 compliance meets international environmental standards for industrial applications
Professional Applications & Engineering Value
This heavy-duty flange nut addresses common industrial fastening challenges where vibration loosening and corrosion compromise joint integrity. The black-oxide steel surface treatment creates a protective barrier against moisture and chemicals, significantly extending component lifespan in manufacturing equipment, structural frameworks, and outdoor machinery. The UNC coarse thread profile combined with the integrated flange provides exceptional resistance to vibrational loosening while distributing clamping force across a wider surface area. This engineering solution eliminates the need for additional washers while maintaining Class 2B thread fit precision for consistent torque performance and reliable connections in high-stress applications.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit tolerance for consistent engagement. Features 7/8"-9 UNC coarse threads with right-hand direction and standard hex profile. The 1-3/4" flange diameter and 1/4" thickness provide optimal load distribution. Compliant with RoHS 3 (2015/863/EU) standards under exemption 6(a) for lead as an alloying element in steel, ensuring environmental regulatory compliance for industrial use.
