Know before you buy
Quick answers about the DS-K4H258-LZ, and how it compares.
Do I need a bracket for my magnetic lock?
The lock body fixes to the door frame and the armature plate fixes to the door. On a door that opens inward, away from the lock side, or where the frame is too narrow, there is no flat place for them to meet. An L and Z bracket set solves this: the L-bracket holds the lock under the frame and the Z-bracket holds the armature plate on the door. Choose the bracket made for your lock model.