Metal switches deliver 24mm mounting diameter

SCHURTER MSM Metal Line of switches provides 24mm mounting diameter, along with a multitude of options for switching voltages from 30Vdc to 250Vac and switching currents from 0.1A to 10A. The rugged devices come with an IP67 seal protection rating and impact resistance rating IK07, making them suitable for use in applications exposed to harsh environmental conditions or in applications requiring protection against vandalism. The mechanical action and the high-grade materials deliver an enhanced tactile feedback. Devices are now available in standard 16, 19, 22, 24, 27, & 30mm diameters over a range of three different technologies: mechanical, capacitive and piezo. 

click here for more info