938-26 Simplex Spring Latch Satin Chrome W/Holdback, W/Key Overridefor 1-3/4 to 2-1/8 thick doors Locking Device Options: Deadbolt  1" throw, manual relock or Deadlocking latch  5/8" throw, with automatic relock Single access codeone easy to manage code for all users Operation Mode Options: Single credentialaccess or Latch holdbackkeeps latch retracted to allow access with combination (select models) Field reversible latch; invert the lock for right hand doors; roman numerals are easily read in either orientation Lock is easily programmed via keypad without removing lock from the door