GLASS LATCH LOCK 1 SIDE KNOB A glass latch lock is a type of lock that is used to secure glass doors, such as sliding doors, double doors, or glass-to-wall doors. It usually consists of a metal cover, a base material casting, and a locking mechanism that can be operated by a key or a knob. A glass latch lock with one side knob means that the lock requires a key for operation only on one side and there is a knob on the other side for operation. SPECIFICATION : - 1MM thickness of cover plate - can be fitted in 12mm glass - one side knob - Useful as shower knob lock