158 RDT SMT Round Milan Deadbolt by Kwikset Signature Series
The Kwikset 158 Series is a Grade 2 deadbolt that is part of the Kwikset Collection.
Function: The Kwikset 158 Round Milan Deadbolt is available in Single Cylinder w-SmartKey (158 RDT SMT) function.
Finish: The Kwikset 158 Round Milan Deadbolt comes in Venetian Bronze (US11P) finish.
All Kwikset Locks come standard with Round Corner Adjustable Latch (RCAL) and Round Corner Strike (RCS).
If you require Square Corner Latches (SCAL) please order from our Latches Section.
If you require Square Corner Strikes (SCS) please order from our Door Strikes Section.
Kwikset SmartKey (SMT)
Kwikset 158 Series Deadbolt is now available in SmartKey function. SmartKey is a new technology that allows you to re-key your own locks quickly and easily without removing them from your door; offers protection against lock bumping. Click here for SmartKey specifications and instructions. Click here for Extra Cut Keys and SmartKey Rekey Tool.
Door Range: 1-3/8" - 1-3/4" (35mm - 44mm).
Backset: Dual Backset Latch; adjustable for 2-3/8" or 2-3/4" backset.
Faceplate: 1" x 2-1/4" Round Corner.

Door Range: 1-3/8" - 1-3/4" (35mm - 44mm).
Backset: Dual Backset Latch; adjustable for 2-3/8" or 2-3/4" backset.
Door Prep: Cross Bore 2-1/8" or 1-1/2"; Edge Bore 1".
Faceplate: 1" x 2-1/4" Round Corner.
Strike: 2-1/4" x 3-5/8" Round Corner.
Bolt: 1" Throw, Steel.
Function:
- Single Cylinder: Key operates deadbolt from outside; turn piece operates deadbolt.
Cylinder: 5-Pin, Kwikset "KW1" Keyway, Keyed Different (KD).
- SmartKey (SMT)
Keying Options: See "Keying" for the following keying options on the 158/159 Deadbolt:
- Keyed Alike: 1 key works all locks.
* SmartKey (SMT) cannot be Master Keyed or Construction Keyed.