The K5572 single square tongue lock body is a European standard mortise lock body designed for durable, smooth, and secure locking performance in residential, commercial, and industrial applications. Manufactured with high-quality corrosion-resistant materials, this lock body features a precision square tongue mechanism that provides reliable security, stable operation, and long-lasting durability. Its standardized European dimensions ensure easy installation and compatibility with various door handles, cylinders, and locking systems, making the K5572 single square tongue lock body an ideal choice for apartments, offices, utility cabinets, and modern door security projects.