The ALX Series cylindrical, grade 2 lock is an evolution of the earlier AL Series, which was based on Walter Schlage’s first commercially sold lock, the A button lock. Creates new and innovative ways to order, configure and utilize a grade 2 lock. One-chassis-fits-all function kit options and cores to minimize inventory. No loose parts and little or no need to adjust for door thickness. Ten designs and a full range of key system support, including all Schlage as well as five competitive cylinder formats.