Kwikset Kingston Lever Light Commercial Door Lock Round Corner Adjustable Plain Latch, 2-3/8" or 2-3/4" Backset Round Corner Full Lip Strike 2-1/8" Crossbore Kingston Lever 4-2/9" Lever Length; 2-7/8" Projection Grade 2 A Smart Solution For Multi-Family Housing And Other Commercial Spaces, The Kingston Lever Offers A High Level Of Security And Convenient Push Button Functionality. Ada Approved In All Functions 3Hr Ul Rating Fits Door Thickness Of 1-3/8" To 1-3/4" Limited Lifetime Mechanical and Finish Warranty Kwikset is the leading residential lock manufacturer, making homeowners feel safe since 1946. Kwikset works hard to understand the world you live in, so that we can do everything we can to protect it. The company’s unwavering commitment to meeting homeowners’ needs has inspired its innovative lock portfolio that includes patented SmartKey Security™ deadbolts, keyless entry combination locks, connected home technology, first-to-market electronic lock, Kevo™, door hardware with Microban® antimicrobial product protection and a wide variety of styles and finishes. Our interior and exterior door products provide customers with the quality, technology, durability and style they want while guaranteeing the highest level of security.