This viewer door knocker includes a 180 degree glass lens viewer for a less obvious way to add security to your home. Now you can safely see who is at your door before you open it. The glass viewer (peephole) has a 1/2" diameter shaft. This Deltana made Door Knocker With Viewer is made of solid brass. It is thru-bolt mounted with 3-3/4" center to center mounting holes (distance between the 2 mounting bolt holes). Includes 2 matching finish #10 2" long screws with 5/8" diameter decorative screw bezels for easy installation.

Specifications for the Deltana DKV630 Peep Hole Door Knocker:

• Material: Solid Brass
• Height: 5-7/8"
• Width: 3"
• Mounting Centers: 3-3/4" c.c. (distance between the 2 mounting screw holes)
• Max Thickness: 1-3/4"
• Mounting: Thru-Bolted (Screws go thru the door)
• Includes matching finish mounting hardware and eye viewer.
• Deltana DKV630 Dimensions (PDF)

No matter which finish you choose for the outside, it will still be solid brass material inside.