ILCO – 451 Series Deadlatch Mortise Lock

For aluminum stile doors, this lock features a key-controlled bolt holdback for flexible traffic control, allowing free entrance at certain times and exit-only at others. The auxiliary latch bolt adds extra security when locked. It uses a zinc latch with a Delrin insert for quiet operation. Available in left or right handed, with field reversible handing. The steel case has corrosion-resistant plating. It accepts standard 1 5/32″ (29.36 mm) zinc or brass threaded mortise cylinders. Cycle testing exceeds ANSI Grade 1 standards. Fully interchangeable with 185 Series Deadbolts.

Disclaimer: The price indicated on this platform reflects the starting rate and is subject to variation based on current inventory levels and the quantity ordered.

Note: Professional installation services are available and will incur an additional charge, separate from the listed product price.