S-90949A217 3/8"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the distorted thread locking mechanism, ensuring reliable performance in high-stress environments.
• Enhanced corrosion protection with zinc yellow-chromate plating, extending service life in harsh industrial conditions.
• High-strength Grade G steel construction provides excellent load-bearing capacity and durability for heavy-duty applications.
• Precision Class 2B thread fit guarantees smooth assembly and secure fastening with minimal risk of cross-threading.
• Integrated flange design with a 13/16" diameter distributes clamping force evenly, reducing surface damage and improving joint integrity.
• External hex drive style allows for easy installation and removal using standard tools, increasing efficiency in maintenance and assembly.
• Fine UNF thread spacing offers better adjustment control and resistance to loosening under dynamic loads.

Professional Applications & Engineering Value

This Grade G 3/8"-24 UNF flange locknut is engineered to address common challenges in industrial settings, such as vibration-induced loosening and corrosion. The distorted thread locking type creates a permanent, reusable lock without requiring additional components, making it ideal for machinery, automotive, and structural assemblies where reliability is critical. Made from zinc yellow-chromate plated steel, it resists rust and wear, while the 13/16" flange diameter provides a wider bearing surface to prevent embedding and distribute stress. This design ensures long-term fastening security in applications like heavy equipment, conveyor systems, and aerospace components, reducing maintenance downtime and enhancing safety.

Specification Summary & Compliance

This flange locknut adheres to UNF fine thread standards with a Class 2B thread fit for precise tolerance and compatibility. It meets industry specifications for Grade G strength and is manufactured with zinc yellow-chromate plating for corrosion resistance, complying with RoHS and REACH environmental directives. The nut's dimensions, including a flange diameter of 13/16" and thread size of 3/8"-24, ensure consistent performance in accordance with ASME and other relevant engineering standards.