These high-quality bearing lock nuts are precision-engineered for secure shaft mounting in demanding electrical and mechanical applications. Available in a range of sizes, including M40x1.5 with a 58mm outside diameter and 9mm thickness, these nuts are constructed from durable low carbon steel with a plain finish for reliable performance. Standard inch sizes such as N09 feature a 1.173" major diameter, 18 threads per inch, and are designed for easy installation with mounting screws, ensuring a tight, vibration-resistant fit. Key features include robust construction, compatibility with standard bearing accessories, and availability in both metric and inch configurations to meet diverse industrial requirements.