Mortise Lock

A mortise lock fits into a deep pocket cut into the door edge, rather than through a round bore like a cylindrical lockset. That construction is why mortise locks are the standard for commercial buildings, schools, and apartment entries: the heavy cast or steel lock body withstands decades of high traffic, integrates deadbolt and latch in one unit, and offers far more functions (entry, classroom, storeroom, privacy, passage) than a cylindrical lock.

When choosing a mortise lock, start with the function you need on that door. An office function locks from outside while always allowing free egress. A storeroom function is always locked outside. An entrance function adds a deadbolt for after-hours security. Then confirm handing (left or right hand, regular or reverse bevel), backset, and whether you need it keyed into an existing system. Most of the mortise locks we sell accept standard or high-security cylinders, so you can upgrade key control without changing the lock body.

We carry Grade 1 commercial mortise locks from Marks USA, Sargent, Corbin Russwin, Yale, and others, including ornamental and storm-door mortise locks if your application is a gate or security screen door. If you're replacing an old mortise lock, send us a photo and measurements and we'll match it.

Mortise Lock

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  • Adams Rite 4510-35-101-313 1-1/8" Mortise Lock Adams Rite 4510-35-101-313 1-1/8" Mortise Lock
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    Adams Rite 4510-35-101-313 1-1/8" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510-35-101-313 is a standard-duty mortise deadlatch designed for applications requiring flexible traffic control. Ideal for hospitals, banks, and retail environments, it allows...
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    MSRP: $119.00
    $79.70
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  • Adams Rite 4510-26-101-628 31/32" Mortise Lock Adams Rite 4510-26-101-628 31/32" Mortise Lock
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    Adams Rite 4510-26-101-628 31/32" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510-26-101-628 is a standard-duty mortise deadlatch designed for flexible traffic control in hospitals, banks, stores, and multi-use facilities. Its unique reverse-key function allows...
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    MSRP: $119.00
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  • Adams Rite 4510-26-101-313 31/32" Mortise Lock Adams Rite 4510-26-101-313 31/32" Mortise Lock
    Quick view

    Adams Rite 4510-26-101-313 31/32" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510-26-101-313 is a standard-duty mortise deadlatch designed for commercial buildings requiring flexible traffic control. Hospitals, banks, and retail locations benefit from its...
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    Qty in Cart: 0
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    MSRP: $119.00
    $79.70
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  • Adams Rite 4510-25-201-628 31/32" Mortise Lock Adams Rite 4510-25-201-628 31/32" Mortise Lock
    Quick view

    Adams Rite 4510-25-201-628 31/32" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510-25-201-628 is a standard duty mortise deadlatch designed for flexible traffic control in hospitals, banks, and commercial buildings. Its unique reverse-turn key feature allows the...
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    Qty in Cart: 0
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    MSRP: $119.00
    $79.70
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  • Adams Rite 4510-25-101-628 31/32" Mortise Lock Adams Rite 4510-25-101-628 31/32" Mortise Lock
    Quick view

    Adams Rite 4510-25-101-628 31/32" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510 is a standard duty mortise deadlatch designed for facilities requiring flexible traffic control, such as hospitals, banks, and retail stores. A reverse key turn holds the bolt...
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    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $119.00
    $79.70
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  • Adams Rite 4510-25-101-313 31/32" Mortise Lock Adams Rite 4510-25-101-313 31/32" Mortise Lock
    Quick view

    Adams Rite 4510-25-101-313 31/32" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510-25-101-313 is a standard-duty mortise deadlatch designed for high-traffic commercial buildings that need flexible access control. Hospitals, banks, and retail stores use this lock...
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    Qty in Cart: 0
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    MSRP: $119.00
    $79.70
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  • Adams Rite 4510-15-101-628 7/8" Mortise Lock Adams Rite 4510-15-101-628 7/8" Mortise Lock
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    Adams Rite 4510-15-101-628 7/8" Mortise Lock

    Adams Rite
    MSRP: $119.00
    $79.70
    The Adams Rite 4510 is a standard-duty mortise deadlatch for hospitals, banks, and commercial buildings needing flexible traffic control. Its reverse-key feature lets you hold the bolt retracted for...
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    Qty in Cart: 0
    Quantity:
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    MSRP: $119.00
    $79.70
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  • Adams Rite 4300-40-201-628 1-1/2" Steel Hawk Electrified Deadlatch (eLatch) Adams Rite 4300-40-201-628 1-1/2" Steel Hawk Electrified Deadlatch (eLatch)
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    Adams Rite 4300-40-201-628 1-1/2" Steel Hawk Electrified Deadlatch (eLatch)

    Adams Rite
    MSRP: $584.00
    $368.37
    The Adams Rite 4300-40-201-628 Steel Hawk Electrified Deadlatch combines mechanical locking with electrified access control for aluminum entrance doors. This non-handed mortise lock works on 12, 16,...
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    MSRP: $584.00
    $368.37
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  • Adams Rite 4300-3M-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch) Adams Rite 4300-3M-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)
    Quick view

    Adams Rite 4300-3M-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)

    Adams Rite
    MSRP: $664.00
    $419.37
    4300-3M-201-628 Adams Rite Aluminum Door Deadlatches Steel Hawk Electrified Deadlatch, 1-1/8" Backset, Monitored, Mortised Strike, Flat, Aluminum Finish: 628/US28 Series: 4300 Steel Hawk Electrified...
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    MSRP: $664.00
    $419.37
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  • Adams Rite 4300-30-202-313 Steel Hawk Electrified Deadlatch (eLatch) Adams Rite 4300-30-202-313 Steel Hawk Electrified Deadlatch (eLatch)
    Quick view

    Adams Rite 4300-30-202-313 Steel Hawk Electrified Deadlatch (eLatch)

    Adams Rite
    MSRP: $584.00
    $368.37
    4300-30-202-313 Adams Rite Aluminum Door Deadlatches Steel Hawk Electrified Deadlatch, 1-1/8" Backset, Mortised Strike, Radius, Dark Bronze Finish: 313 Series: 4300 Steel Hawk Electrified Deadlatch...
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    Qty in Cart: 0
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    MSRP: $584.00
    $368.37
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  • Adams Rite 4300-30-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch) Adams Rite 4300-30-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)
    Quick view

    Adams Rite 4300-30-201-628 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)

    Adams Rite
    MSRP: $584.00
    $368.37
    The Adams Rite 4300 Steel Hawk Electrified Deadlatch combines mechanical locking with electronic access control for aluminum entrance doors. Designed for facilities needing fail-secure operation with...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $584.00
    $368.37
    Subtotal:
    Add to Cart
  • Adams Rite 4300-30-201-313 1-1/8" Steel Hawk Electrified Deadlatch (eLatch) Adams Rite 4300-30-201-313 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)
    Quick view

    Adams Rite 4300-30-201-313 1-1/8" Steel Hawk Electrified Deadlatch (eLatch)

    Adams Rite
    MSRP: $584.00
    $368.37
    The Adams Rite 4300-30-201-313 Steel Hawk Electrified Deadlatch combines mechanical locking with electronic access control for aluminum entrance doors. Ideal for facilities requiring fail-secure...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $584.00
    $368.37
    Subtotal:
    Add to Cart
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