Kwikset Security, 660 26D CP RCAL RCS KA6, Satin Chrome Finish, Single Cylinder Deadbolt, 1" Diameter Round Corner Adjustable Deadbolt Latch Fits Both 2-3/8" & 2-3/4" Backsets, Round Corner Strike, Lifetime Mechanical Warranty, Lifetime Finish Warranty, Keyed Alike In A Case Of 6, Clear Pack.