Specification Sheet

ARM-014-9/14
TERMS & ICON GLOSSARY
Terms & Icon
Glossary
Definitions of commonly used terms plus classifications
and descriptions of the icons found throughout this catalog.
Terms Glossary
Backset: The horizontal dimension from the front of the faceplate to the center of the cylinder.
Cam: The part on the back of a cylinder that rotates when the key is turned, and operates the lock mechanism.
Deadbolt: A lockbolt having no spring action. Usually rectangular and actuated by cylinder or thumbturn.
Deadlatch: A lock with a radiused or bevelled spring-loaded latchbolt which may be automatically or manually locked against unauthorized retraction
and will self latch when the door returns to the closed position.
Dogging: The means of retaining the lockbolt or exit device mechanism in the open position to allow the door to be free swinging.
Escutcheon: An ornamental or protective plate that is fixed to the stile of the door and slips over the cylinder, thumbturn, handle or similar.
Exit Device: A horizontal bar running at least two-thirds of the width of the door leaf, where pressure on the bar releases the locking arrangement.
Keyed Alike (KA): All cylinders may be operated by the same key.
Keyed Different (KD): Different keys operate each cylinder or group of cylinders.
Latchbolt: A bevelled or radius bolt which operates on a spring return so that the lock may self-lock.
Schoolhouse Function: The inside operation of the deadlock is limited to unlocking only. The lock is modified to prevent someone (like a student)
from locking up the classroom, usually with a thumbturn, from the inside.
Solenoid: A device that when energized with electrical current, develops a magnetic pull motion enabling mechanical work to be effected (such as
plunger movement that releases the blocking arm on electric strikes).
Icon Glossary
ICON CLASSIFICATION DESCRIPTION
FIRE RATED
FIRE-RATED
Products with a fire rating have been evaluated and listed to UL10B, “Fire
Test of Door Assemblies” and UL10C, “Positive Pressure Fire Tests with Door
Assemblies”. The hourly rating qualification is also noted.
GRADE 
GRADE 1
Passed Requirements of 1500 lbs. static force, 70 ft. lbs of impact force and
withstands 500,000 cycles of operation.
ICON GLOSSARY CONTINUED ON BACK
GENERAL INFORMATION
GI-1
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