Kwikset works hard to understand the world you live in, so that we can do everything we can to protect it. Our interior and exterior door products provide customers with the quality, technology, durability and style they want while providing the highest level of security.. Katella Lever Entry Door Lock SmartKey with 6AL Latch and RCS Strike Satin Nickel Finish Katella Lever Entry Door Lock SmartKey with 6AL Latch and RCS Strike Satin Nickel Finish.