This is a 33mm round momentary push button similar to the ones you find on arcade games.
Simple screw in design.
Perfect for mashing.

 

Features:

• Convex Button
• 35.75 mm Diameter x 46 mm Height
• M28 thread
• Mounting Hole Diameter: 27.3 mm
• Net weight: 0.015kg
• Rated for 12V/24A