The KL901 is a 3/8-32 thread standard knob lock designed to secure control settings subjected to shock and vibration. It features a positive friction locking mechanism that prevents accidental movement or jarring, making it ideal for critical control applications. The special splash-proof version includes molded rubber inserts to prevent water ingress and dust ingress, ensuring durability in harsh environments. This lock fits standard 0.9-inch diameter control knobs and does not require special mounting hardware or tools. Made from high-quality materials with a mirror finish, it is tested for reliability under salt spray, humidity, and temperature extremes. Its compact design makes it suitable for industrial applications where secure, reliable locking is essential.