Zkteco LMB-280ZL Electromagnetic Lock Z & L Bracket is strong and reliable. L & Z Brackets are required for Inswing Door Applications. The “L” bracket is used to mount the magnetic lock above the door and the “Z” bracket attaches to the door to line up the armature plate with the magnet. They are used for the conversion of standard out-swing locks to suit in-swinging applications. Zkteco LMB-280ZL Electromagnetic Lock Z & L Bracket ensures the magnet remains on the protected side of doors. The L-bracket is used to fix the magnet to the jamb for suiting typical outward-opening door applications. Brackets are required to be paired with our Magnetic Locks for in-swing door applications. Zkteco LMB-280ZL Electromagnetic Lock Z & L Bracket offers no warranty.