Momentary: the push button is used in industrial controlling circuits for controlling in electromagnetic starter, contactor, relay and other electric circuits,momentary push button
Button: this is a round push button kit with latching normally open type, push it to turn on and push again to turn off,spst push button
supply: made of for usage,key
Horn button: 125v rated voltage with 12mm screw mounting design widely used in the electric appliances, tool boxes, electrical modifications and all automotive power supplies,power button