The SparkFun COM-09337 is a 35mm concave momentary push button similar to the ones you find on arcade games.
Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel.
Features:
- Concave plunger design
- Durable nylon material
- Microswitch: max 3A @ 120 VAC
- Microswitch reliability tested to 10,000,000 cycles
- Includes 3 terminal microswitch
Dimensions:
- Cap diameter: 35mm
- Overall height: 65mm
- Mounting hole: 1 1/8th inch paddle bit (1.125" / 28mm)