Adams Rite MS Deadlock MS1850SN 45X 1 1 2" Backset ANSI Size Hook Bolt Flat Faceplate Aluminum Metal Wood Door Ungraded Accomodates Up To 1 1 8″ Accomodates Up To 1 1 8″ Cyl PN: 37172 57L20 The locking mechanism is identical to the widely used MS1850S Series MS Deadlock Key can be removed only when bolt is in a positively locked or unlocked position
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