escutcheon plate L series

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Typically for a 1-3/4" door you would use a 1-1/4" cylinder.  Use the Table in the Pricebook for a reference:  
The housing and linkage is what sits underneath the inside escutcheon plate and can be seen in this exploded view.  The linkage is what gives the H lock simultaneous retraction.  It allows the dead...
See image, ANSI A115.1 Mortise Lock Prep   This door prep requires the N escutcheon with the L283-029 spacer kit to keep the springcage from falling into the door.&nbs...