IDEC rugged "full size" TWTD series pushbuttons offer both variety and durability in an attractive design. With NEMA style mounting, which features a chrome plated locking ring that screws onto a die cast zinc body, stripped threads are now a thing of the past. Contacts screw on and feature clear inspection windows for monitoring contact surface condition. All IZUMI units include over 1/4" of rubber gaskets and an unbreakable steel anti-rotation ring for use in notched panel cutouts. Models include illuminated and non-illuminated pushbuttons, pilot lights, selectors, key switches, and Emergency Stop switches. Button sizes are available up to 2-9/16" (65mm) in diameter.