HD-OPTION HES faceplate for use with Mortise locksets with a 1" deadbolt without a deadlatch.  

All of the 1000 Series options are interchangeable.  The option kit contains all of the necessary parts to convert the 1006 into the particular model, i.e. 1006 + HD option = 1006HD.

HD (4-7/8" x 1-1/4") For use with Mortise locksets with a 1" deadbolt without a deadlatch. Strike will not release when deadbolt is extended. Compatible Locksets: Sargent (7700 & 8100 series), Yale (8700). ANSI/BHMA Numbers: #E09391, #E09392, #E09393, #E09331, #E09332, #E09333. When the deadbolt is projected manually the electric strike will not release. When the deadbolt is retracted, access is accomplished by electrically releasing the keeper.