This Harmony ZB6Z4B is a single contact block with body/fixing collar, 2 NC faston connector. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights
This Harmony ZB6AGH is a selector switch head, 3-position stay put, key operated Ronis 200. It is part of the range Harmony XB6 diameter 16mm monolithic plastic push buttons, switches, and pilot lights