Help prevent business thefts and break-ins with the LiftMaster 41A6102 automatic side lock from Garage Door Supply Company. This automatic side lock with mounting screws is designed for use only with the commercial LiftMaster 3800 jackshaft garage door opener or LiftMaster's 8500 commercial jackshaft garage door operator. A long lead wire makes it easier to connect to your opener. With the lock in place you can remotely open and close the lock.
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