S-90621A060 1 1/4"-7 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with a steel insert locking mechanism that maintains secure fastening in high-stress environments
• Exceptional durability and strength from Grade 8 steel construction, ensuring reliable performance under heavy loads
• Enhanced torque application thanks to the extra wide hex profile, allowing for easier installation and removal with standard tools
• Wide compatibility with coarse UNC threads and Class 2B fit, providing consistent engagement in various industrial assemblies
• Long-lasting corrosion resistance through robust steel material, reducing maintenance needs in harsh conditions
• Environmental compliance with RoHS 3 standards, making it suitable for regulated industrial applications
• Optimized for right-hand threading in inch systems, ensuring straightforward integration with existing equipment

Professional Applications & Engineering Value

This Grade 8 steel locknut is engineered to address common industrial challenges such as loosening under vibration and heavy loads. The extra wide hex profile and external drive style allow for high torque application, minimizing the risk of stripping during installation. Featuring a steel insert locking type and coarse UNC threads, it provides reliable, repeated fastening in machinery, construction, and automotive sectors where vibration resistance is critical. The 1 1/4"-7 thread size and Class 2B thread fit ensure precise alignment and secure holds, reducing downtime and enhancing safety in demanding applications.

Specification Summary & Compliance

This locknut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent performance. It meets Grade 8 strength classification and is manufactured in accordance with industry norms for dimensional accuracy, including a width of 2" and height of 1 13/32". The product is RoHS 3 (2015/863/EU) compliant, ensuring it meets environmental regulations for hazardous substance restrictions.