S-94902A102 5/16"-18 Flange Nuts

Key Features & Benefits at a Glance

• Exceptional Load Distribution - The 11/16" flange diameter spreads clamping force over a wider area, reducing surface damage and preventing loosening under vibration.
• Superior Strength for Demanding Applications - Grade 8 material classification ensures high tensile strength and reliable performance in heavy-duty and high-stress environments.
• Enhanced Corrosion Resistance - The black-phosphate steel finish provides a protective layer, offering improved resistance to rust and corrosion in harsh industrial settings.
• Reliable and Fast Assembly - The UNC coarse thread and Class 2B thread fit enable quicker installation and a secure, consistent fit with standard bolts.
• Secure, Non-Slip Fastening - The integrated flange acts as a built-in washer, eliminating the need for a separate component and providing a stable, locked connection.
• Optimized for Standard Tools - The external hex drive and standard profile allow for easy installation and removal with common wrenches and sockets.
• Compliant for Global Use - Meets REACH and RoHS 3 environmental standards, ensuring safety and regulatory compliance for international industrial projects.

Professional Applications & Engineering Value

This Grade 8 Flange Nut is engineered to solve critical fastening challenges in industrial applications where vibration, high loads, and environmental factors are concerns. The black-phosphate steel construction provides a durable, corrosion-resistant barrier, extending service life in automotive, machinery, and structural assemblies. The 11/16" flange diameter distributes stress effectively, preventing joint failure and surface indentation. With UNC coarse threads and a Class 2B thread fit, it ensures rapid, precise engagement with matching bolts, reducing installation time and minimizing the risk of cross-threading. This nut is ideal for heavy-duty equipment, construction projects, and manufacturing systems requiring a robust, reliable, and compliant fastening solution.

Specification Summary & Compliance

This flange nut adheres to precise dimensional standards, including a Class 2B thread fit for consistent engagement and a UNC coarse thread (5/16"-18) in a right-hand direction. Manufactured from high-strength black-phosphate steel in the inch system, it meets Grade 8 strength requirements for superior performance. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and suitability for global industrial use.