SL-729 Wired Push Button features a lighted insert. This push button has a portion that must recess into the surface it is mounted to. It requires a 5/8-Inch (or 16mm) diameter hole to be mounted properly. The plate of this push button sits flush on the surface, while the back portion of the push button recesses into the hole.
Amazon.com
This is a simple yet elegant push button for use with hardwired doorbells. The recessed-mount design gives it a low profile, and the lighted button means no fumbling in the dark.–Josh Dettweiler
What’s in the Box Push button, hardware kit
Black Finish Hardwired Push Button
- Hammered Black Finish
- Plastic
- Lighted
- Recess Mount (.625″ hole required)
- Recessed-mount lighted push button
- For hardwired doorbells
- Antique brass finish; 1 by 3.875 inches