"APEX" DOUBLE CYLINDER DEAD- BOLT *Adjustable latch for 2-3/8" or 2-3/4" backset *For 1-3/8" - 1-3/4" door thickness *Full 1" throw latch bolt *5 pin tumbler cylinder *Removable cylinder for rekeying *KW1 key way *Reversible for RH/LH door*Solid brass latch bolt *Zinc cylinder housing *Satin chrome *Clamshell *Satin Chrome