Schneider Electric, Harmony, ZB4BT84, Emergency stop head, switching off, metal, red mushroom Ø40, Ø22, trigger latching push pull

Amazon

Progress with confidence designed for industry Flexibility and a robust construction An ingenious locking system consisting of a snap-fit head and body, tightened with a single screw, ensures easy yet secure mounting

Radwell UK

PUSHBUTTON, HARMONY XB4, 40 MM MUSHROOM, EMERGENCY STOP HEAD, TRIGGER AND LATCHING PUSH PULL, CHROMIUM PLATED METAL, ROHS COMPLIANT