S-90949A115 3/4"-10 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology, preventing loosening under dynamic loads.
• Enhanced corrosion protection with black-phosphate steel coating, ideal for harsh industrial environments.
• Integrated flange design eliminates the need for a separate washer, distributing load evenly and speeding up installation.
• High-strength Grade G material ensures reliable performance in heavy-duty applications.
• Coarse UNC threads provide faster assembly and reduced risk of cross-threading.
• Precision Class 2B thread fit guarantees consistent engagement and secure fastening.
• External hex drive allows for easy installation with standard tools, improving workflow efficiency.

Professional Applications & Engineering Value

This Grade G flange lock nut is engineered to solve critical challenges in industrial settings where vibration and corrosion compromise fastener integrity. The distorted thread locking mechanism actively counters rotational loosening, making it ideal for machinery, structural assemblies, and automotive systems subjected to constant stress. Manufactured from black-phosphate steel, it offers a durable barrier against moisture and chemicals, extending service life in outdoor or corrosive environments. The integrated flange design (1 37/64" diameter) provides a stable bearing surface, reducing point stress and minimizing the risk of material damage. With coarse UNC threads (3/4"-10) and an external hex drive, it ensures quick, tool-friendly installation, saving time in high-volume production or maintenance operations while maintaining REACH and RoHS 3 compliance for global regulatory adherence.

Specification Summary & Compliance

This flange lock nut adheres to UNC coarse thread standards with a Class 2B thread fit for precise tolerance and reliable performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material restrictions are upheld. The nut is manufactured to Grade G strength classification, supporting industrial demands for durability and load-bearing capacity.