Enhance your control systems with this premium 19mm metal rotary key switch, featuring a robust self-locking mechanism for secure and reliable operation. This versatile switch offers both 2-position and 3-position configurations, making it ideal for various industrial and automotive applications. The durable metal construction ensures exceptional longevity and consistent performance, while the integrated connector simplifies installation and wiring processes. The ergonomic key knob design provides smooth rotation and precise control, with a professional aesthetic that suits high-end equipment. Each switch comes with a matching key for controlled access, perfect for security-conscious applications. The threaded housing allows for stable panel mounting, while the self-locking feature prevents accidental position changes during operation. Whether you're building control panels, industrial machinery, or specialized equipment, this rotary switch delivers the reliability and functionality needed for demanding applications. The quality construction and precise engineering make it an excellent choice for both OEM installations and system upgrades.