Seachoice Button Horn Switches may be used for a horn or any other momentary function. The red button switch supports up to 15 amps, and mounts in a 1/2 inch hole. The switch fits panels up to 3/4 inch thick.
A Black Heavy Duty Momentary push button switch is also available. The black on-off switch is housed in chrome plated brass. It has a 1-1/2 inch diameter switch and an overall width of 2-5/8 inches. Center to center holes are 2-1/16 inch apart.