#8 Single Sided Deadbolt in French Antique Brass by Emtek

Deadbolt lock from Emtek brand new in boxes with keys Patio Deadbolt Function- Patio deadbolt operates by Thumbturn from one side only - NO KEYED CYLINDER. (One Sided - meant to be used on doors that do NOT have a hole drilled all the way through them) Single Deadbolt Function- Single cylinder deadbolt operates with a key on the exterior and a thumbturn on the interior (For use on exterior doors where additional security is needed, pair with a keyed entry for two points of locking) Double Deadbolt Function- Double cylinder deadbolt operates with a key on the exterior and interior (For use on exterior doors with glass panes or gates where additional security is needed) Specifications Length: 3 5/8" Width: 2 1/2" Hardened Steel Bolt Heavy Gauge Steel Understrike and Brass Trim Strike Shipped with every Deadbolt Please specify door thickness in the comment section upon checking out if larger then 1 3/4"