Lock nuts are precision-engineered electrical and mechanical components designed for secure fastening in demanding applications. Available in sizes from #00 to #30 and thread diameters ranging from .391-32 to 5.888-12, these nuts feature American Standard Fine Pitch threads with a Class 3 fit for optimal reliability. Common variants include AN15 (2.933-12 thread, 0.604" thickness) and AN16 (3.137" thread diameter, 12 threads per inch), constructed from low carbon steel for durability. Key features include high torque resistance, precise dimensional accuracy, and compatibility with bearing assemblies, ensuring stable performance under vibration and load.