The offset length of centerline of a body(10.8mm direction) and the keeper should be ± 0.15mm and less.When it is applied on a door, the latch body (10.8mm direction) should be installed in a parallel direction with a rotating axis of the door. It should not be pulled off with an excess force. Do not apply an excess pressure(impact) onto the body while locking or unlocking the door, it will be the cause of damage.