Clamp This c-clamp lock requires no tools to install and yet is very effective in locking a sliding glass door or window against a panel pet door for security. They are often used for window security apart from their use with pet doors. All you need to do is place it on the flange of the track and tighten the screw to secure the lock in place!
Foot Actuated Dead Bolt Lock
This lock is very convenient for locking a sliding glass door against a patio pet panel. The lock may be mounted in a variety of ways and includes a foot operated level for inserting the dead bolt so the user doesn't need to bend over. These locks are used to increase security apart from their use with patio pet doors. This particular locking mechanism for your sliding glass door does require that you screw in the lock to your sliding glass door or frame.