The QCI250 is a Grade 2 interconnected lock from Stanley Security. It pairs a lever lockset with a latch and full lip strike, and a single lever action retracts both the deadbolt and the latch for a quick exit. It is used on residential-style entry doors in multifamily and similar openings. Part QCI250 E 605 S4 478S SC is the Double Lock Sierra Lever, 2-3/4 Sq Ltch ANSI Strike, Schlage C Keyway version in Bright Brass.

• Double Lock Sierra Lever
• 2-3/4 Sq Ltch ANSI Strike
• Schlage C Keyway
• Finish 605 Bright Brass
• Part number QCI250 E 605 S4 478S SC