S-94902A113 7/8"-14 Flange Nuts

Key Features & Benefits at a Glance

• Exceptional Load Distribution – The 1 3/4" flange diameter provides a wider bearing surface, reducing surface pressure and preventing damage to connected materials.
• Superior Corrosion Resistance – Black-phosphate steel coating offers reliable protection against rust and environmental degradation in harsh industrial settings.
• High-Strength Performance – Grade 8 classification ensures excellent tensile strength and durability for heavy-duty and high-vibration applications.
• Precise Thread Engagement – 7/8"-14 UNF fine thread with Class 2B fit delivers secure, vibration-resistant fastening and minimizes the risk of cross-threading.
• Easy Installation & Removal – External hex drive with standard profile allows for straightforward application using common wrenches and sockets.
• Regulatory Compliance – Meets REACH and RoHS 3 standards, ensuring safe use in regulated industries and global market acceptance.
• Optimized for Inch-System Applications – Right-hand thread design and inch measurements ensure compatibility with existing machinery and North American standards.

Professional Applications & Engineering Value

This Grade 8 Black-Phosphate Steel Flange Nut is engineered to address critical challenges in heavy machinery, construction, and automotive assembly. The UNF fine thread and Class 2B fit provide superior resistance to loosening under dynamic loads and vibrations, making it ideal for engines, structural frames, and equipment subjected to constant stress. The integrated flange eliminates the need for separate washers, streamlining installation while enhancing load distribution across softer materials. With its black-phosphate surface treatment, the nut maintains integrity in moist or chemically aggressive environments, reducing maintenance frequency and extending service life in industrial applications.

Specification Summary & Compliance

This flange nut adheres to Class 2B thread fit for consistent engagement and meets UNF (Unified National Fine) standards with 7/8"-14 thread size. Manufactured from high-strength steel with a black-phosphate finish, it conforms to Grade 8 mechanical properties. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and suitability for industrial use worldwide.