A bulky deadbolt can spoil a door with clean, modern hardware. The Kwikset Downtown deadbolt from the Signature series answers that with a square rose and a slim body; the maker states it protrudes 50% less than standard deadbolts. It is a single cylinder lock: a key works it from outside, and a thumb turn works it from inside, where the mounting screws stay exposed.
The cylinder takes the Kwikset SmartKey keyway with 5 pins. The zinc housing carries a satin brass finish, BHMA 606 (US4), clear coated, so it sits well beside other US4 hardware on the same job.
Installation covers most existing preps. The 6AL latch sets to a 2-3/8 in or 2-3/4 in backset, the lock is reversible, and it fits doors from 1-3/8 to 1-3/4 in thick with a 1-1/2 in or 2-1/8 in crossbore. The STRKP strike pack lets you match the jamb you find: square corner, round corner and a 5303 round corner full lip strike are all in the box.
- Part number: 258SQT-4S.STRKP
- Function: single cylinder deadbolt, reversible
- Keyway: Kwikset SmartKey, 5 pins
- Material and finish: zinc, satin brass 606 (US4)
- Faceplate: 1 in round or 2-1/4 x 1 in
- Strikes: 2-1/4 x 1 in, 2-1/4 x 1-5/8 in, 1-1/8 in lip
- Warranty: limited lifetime mechanical and finish
Backset:
- 2-3/4 in
- 2-3/8 in
BHMA Finish:
606 (US4) Satin Brass, Clear Coated
Crossbore Size:
- 1-1/2 in
- 2-1/8 in
Cylinder Configuration:
Single Cylinder
Door Thickness:
1-3/8 to 1-3/4 in
Faceplate Size:
- 1 in round
- 2-1/4 x 1 in
Finish:
Satin Brass
Finish Code:
US4
Finish Family:
Matte Brass
Handing:
Reversible
Keyway:
Kwikset SmartKey
Keyway Brand:
Kwikset
Manufacturer Warranty:
Limited Warranty: Lifetime Mechanical and Finish
Material:
- Zinc
Number of Pins:
- 5
Rose/Escutcheon Design:
Square Rose
Series:
Kwikset Signature
Strike Dimensions:
- 2-1/4 x 1 in
- 2-1/4 x 1-5/8 in, 1-1/8 in lip
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