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What replaced the D400 series or the D800 series?

Falcon replaced its deadbolt offering in 2008 with the D100 and D200 series.  The D800 Grade 2 deadbolt was replaced by the D200 and the D400 Grade 1 deadbolt was replaced by the D100.   The new bolts utilize an adjustable backset (2-3/8" and 2-3/4") and the function numbers carry over with the exception of the first digit. 

Example:  D811 = D211, D421 = D121



 

Part compatibility (Old vs new):

  • With the exception of the cylinder, most of the parts are neither backward nor forward compatible.  This includes the deadbolt.
  • The cylinder mechanism for all four deadbolts (D100, D200, D400 and D800) is compatible, but the specific tailpiece for each lock must be used.



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