Schlage B80 Single Sided Residential Deadbolt with Thumbturn from The B-Series a, Matte Black
Brand: SCHLAGE
Color: Matte Black

Schlage B80-622 Matte Black Door Bolt Certifications: ANSI A156.5, 1992, Grade 2 Auxiliary Lock Applications: Residential locks single and multi-family entrance doors Door Ranges: 1 3/8" to 1 3/4" thick Backset: Universal fits 2 3/8" or 2 3/4" backsets. Latches: 1" x 2-1/4" Square Corner, 7/8" Housing diameter, 1" Throw Strikes: 1-1/8" x 2-3/4" Square Corner with Box Reinforcement: Door frame strike reinforcer with 3" screws. Trim Ring: 7/8" Wrought brass, reinforced with security insert.

This is a single sided deadbolt. There is no keyed cylinder or keyed side to this deadbolt.
Thumb turn on interior with no key on exterior, pair with a deadbolt for additional security
No exterior plate or exposed trim
ANSI Grade 1 (Best) to provide maximum security