Our heavy-duty momentary push button starter switch goes on when the button is depressed; the spring returns it to the off position. It has two 8-32 screw terminals and is rated 35A at 12V DC, 20A at 24V DC. Its die cast housing comes complete with a rubber cap, nut assembly and hex nut. It is 5/8" diameter and will mount in panels up to 1/4" thick.