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  • Marks LocDown LA318GJ

    Maximum Security Mortise Lockset

    SKU: LA318GJ/32D-G3


    Discover the added protection of antimicrobial finishes for this product! For more information and assistance with placing an order, please don't hesitate to give us a call. Our team is ready to help you find the perfect solution.

    No locking in the halls. The Marks LocDown LA318GJ Maximum Security Mortise Lockset provides emergency lockdown for educational buildings and doors. Teachers can secure classroom doors safely without going into the hallway during high risk situations.


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    3 Years of SHIELD Coverage

    Product Replacement | Extended Return Policy | Price Protection

    Terms and Conditions


    • At the first sign of trouble outside, lock down a classroom instantly
    • Faculty and students remain safely within classroom, no need to open door
    • The interior lever is capable of retracting the latch at any time
    • Classroom Security function – Latch by knob/lever either side except when outside knob/lever is locked from inside or outside by key, Auxiliary latch deadlocks latch bolt when door is locked, Inside knob/ lever is always free for immediate egress
    • Available as mortise locks with mortise function F32 – Cylindrical locks with cylindrical function F110 available via special order
    • Double-cylinder cylindrical lockset built to ANSI/BHMA Grade 1 specs
    • Can be ordered with levers that meet the ADA, Life Safety and local jurisdiction codes
    • Mortise locks meet or exceed ANSI/BHMA 156.13 Grade 1 specifications
    • Easy Retro-Fit Installation

    Schools are at the top of the list when it comes to needing quick and easy lockdown solutions. The Marks LocDown LA318GJ Maximum Security Mortise Lockset provides emergency lockdown for classroom doors creating safer environments during high risk situations. Teachers can secure classrooms with a key from inside without having to step out into the hallway. Inside key operation is single acting and can only go in one direction, locking exterior lever only. Students and faculty remain safely inside the classroom while the intruder is locked out. The latch can be retracted at any time using the interior lever. A large indicator changes from green to red showing lockdown status and peace of mind that the room is secure. LocDown series locks easily retrofit to existing standard locks. Helping keep our students and faculty safe are what the LocDown was designed to do!


    Manufacturer MarksUSA
    ANSI Rating A156.13, Grade 1 (Best)
    BHMA Rating A156.13, Grade 1 (Best)
    Finish Stainless Steel
    Lock Features Old Lockdown
    Warranty Lifetime Mechanical
    Function Classroom Intruder
    Handle Type Lever Handle Door Locks
    Access Type Key
    Locking Device Mortise
    Brand Marks

    Door requirements

    Door Handing Reversible
    Door Prep Mortise


    Fire Rating UL 3 hr. Latch


    Door Thickness Minimum 1 3/4 in.
    Dimensions 8 1/2 (H) x 2 3/4 (W) x 7/16 (D) in.