For more than 90 years, Schlage has built a legacy of providing security, quality and innovation to homes and businesses. This Schlage security set features our B60 Grade 1 deadbolt and a field reversible F51 keyed lever keyed alike. Both locks in this set are backed by our limited lifetime mechanical and finish warranty.With products that meet the highest industry standards, Schlage hardware is made to protect your home and give you peace of mind that only comes with products that stand the test of time. Security, quality and convenience , it is easy to see why Schlage is the most preferred residential door lock brand by consumers and brand most used by builders.