ERA-DCKIT-2 
The link below will take you to a page that lists our wired doorbell push buttons. On this table are the SKUs (model numbers) of our wired push button, dimensions, mounting style, and hole-to-hole measurements.
Wired Push Button Measurements
If a push-button we have on our site is not shown on this table, please feel free to reach out to us via email, or give us a call at 904-245-1184.