what is thermal bow


Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...
latch bind
The hole in the Everest 29 key bow allows for the manufacturing process of the patented design and gives the ability to immediately distinguish the Everest 29 key from its predecessors. The Evere...
The emergency keys are shipped with each lock.  The part numbers are; 61-509 standard and 61-510 large bow size.