What's the difference btwn Jr and Tr in medeco maxum 11*603 locks?
Medeco - 11JR603 - Maxum Residential - M3 BiLevel - 6-Pin - Single Deadbolt - Optional Backset - DL Keyway Pinned - 05 - Bright Brass - Grade 1
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Open Jul 23, 2026 - 12:54 PM
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Staff Answer
Jul 23, 2026 - 12:54 PM
The difference between JR and TR on Medeco Maxum deadbolts is the Medeco cylinder/key platform, not the basic lock body. In Medeco’s Maxum part numbering, J indicates Medeco3 BiLevel, while T indicates Medeco3; the R indicates the residential trim style. So SKU 11JR604-05-DLT is a Maxum Residential single-cylinder deadbolt with a 6-pin Medeco3 BiLevel cylinder, bright brass finish, and DL keyway.
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