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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  • MA571L DN 613 Falcon Mortise Lock MA571L DN 613 Falcon Mortise Lock
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    MA571L DN 613 Falcon Mortise Lock

    Falcon
    MSRP: $841.00
    $431.17
    The Falcon MA571L DN 613 is a commercial-grade mortise lock engineered for offices, hospitals, schools and institutions requiring reliable security. Its two-piece stainless steel latch and anti-friction bolt deliver dependable performance in high-traffic...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $841.00
    $431.17
    Subtotal:
  • MA431L SG 605 Falcon Mortise Lock MA431L SG 605 Falcon Mortise Lock
    Quick view

    MA431L SG 605 Falcon Mortise Lock

    Falcon
    MSRP: $832.00
    $427.84
    The Falcon MA431L SG is a commercial mortise lock built for high-traffic office, hospital, and education environments. It combines an interchangeable SFIC core for fast re-keying with a rugged two-piece stainless steel latch and deadbolt mechanism that...
    Qty in Cart: 0
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    Price:
    MSRP: $832.00
    $427.84
    Subtotal:
  • Falcon MA531P DN 605 Mortise Lock, Interchangeable Core MA531P DN 605 Falcon Mortise Lock
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    Falcon MA531P DN 605 Mortise Lock, Interchangeable Core

    Falcon
    MSRP: $971.00
    $479.27
    The Falcon MA531P DN 605 is a heavy-duty mortise lock built for commercial environments including offices, hospitals, and education facilities. Its interchangeable core (SFIC) design allows quick re-keying without removing the lock, making it ideal for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $971.00
    $479.27
    Subtotal:
  • MA431P SG 605 Falcon Mortise Lock MA431P SG 605 Falcon Mortise Lock
    Quick view

    MA431P SG 605 Falcon Mortise Lock

    Falcon
    MSRP: $1,032.00
    $501.84
    The Falcon MA431P SG 605 is a commercial mortise lock built for high-traffic environments including offices, hospitals, and educational facilities. This dependable lock combines security with durability to handle constant use, and features an...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,032.00
    $501.84
    Subtotal:
  • MA541B SG 606 Falcon Mortise Lock MA541B SG 606 Falcon Mortise Lock
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    MA541B SG 606 Falcon Mortise Lock

    Falcon
    MSRP: $941.00
    $468.17
    The Falcon MA541B SG 606 is a heavy-duty mortise lock built for commercial environments including offices, hospitals, and educational facilities. This interchangeable core lock combines affordability with dependable security, engineered to withstand...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $941.00
    $468.17
    Subtotal:
  • MA531B DG 613 Falcon Mortise Lock MA531B DG 613 Falcon Mortise Lock
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    MA531B DG 613 Falcon Mortise Lock

    Falcon
    MSRP: $941.00
    $468.17
    The Falcon MA531B mortise lock delivers commercial-grade security and durability for offices, hospitals, educational facilities, and other institutional buildings. Built to withstand constant use without fail, this Series 1000 lock features a mechanical...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $941.00
    $468.17
    Subtotal:
  • MA411L SG 605 Falcon Mortise Lock MA411L SG 605 Falcon Mortise Lock
    Quick view

    MA411L SG 605 Falcon Mortise Lock

    Falcon
    MSRP: $804.00
    $416.47
    The Falcon MA411L SG 605 is a commercial mortise lock engineered for high-traffic office, hospital, and education environments. This dependable lock combines security with durability, featuring an interchangeable core (SFIC compatible) for quick...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $804.00
    $416.47
    Subtotal:
  • MA521B DG 605 Falcon Mortise Lock MA521B DG 605 Falcon Mortise Lock
    Quick view

    MA521B DG 605 Falcon Mortise Lock

    Falcon
    MSRP: $934.00
    $465.58
    The Falcon MA521B DG 605 is a commercial mortise lock engineered for high-traffic office, hospital, and education environments. This durable, dependable lock combines security with affordability, built to withstand constant use. The interchangeable core...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $934.00
    $465.58
    Subtotal:
  • MA531B DG 606 Falcon Mortise Lock MA531B DG 606 Falcon Mortise Lock
    Quick view

    MA531B DG 606 Falcon Mortise Lock

    Falcon
    MSRP: $941.00
    $468.17
    The Falcon MA531B DG 606 is a commercial mortise lock engineered for high-traffic office, hospital, and education environments. It delivers dependable security with an interchangeable core for quick re-keying, eliminating costly downtime. Built with...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $941.00
    $468.17
    Subtotal:
  • MA521B AG 605 Falcon Mortise Lock MA521B AG 605 Falcon Mortise Lock
    Quick view

    MA521B AG 605 Falcon Mortise Lock

    Falcon
    MSRP: $934.00
    $465.58
    The Falcon MA521B AG 605 is a commercial mortise lock engineered for high-traffic office, hospital, and education environments. This durable lock combines security with reliability, featuring an interchangeable core (SFIC-compatible) for quick re-keying...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $934.00
    $465.58
    Subtotal:
  • MA521B DN 605 Falcon Mortise Lock MA521B DN 605 Falcon Mortise Lock
    Quick view

    MA521B DN 605 Falcon Mortise Lock

    Falcon
    MSRP: $934.00
    $465.58
    The Falcon MA521B DN 605 is a commercial mortise lock engineered for high-traffic office, hospital, and education facilities. This dependable SFIC-compatible lock combines security with durability, featuring a two-piece stainless steel latch,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $934.00
    $465.58
    Subtotal:
  • Falcon MA571L DG 613 Mortise Lock, Satin Stainless Falcon MA571L DG 613 Mortise Lock, Satin Stainless
    Quick view

    Falcon MA571L DG 613 Mortise Lock, Satin Stainless

    Falcon
    MSRP: $941.00
    $468.17
    The Falcon MA571L mortise lock is a heavy-duty commercial lock designed for offices, hospitals, educational facilities, and high-traffic environments. Built for constant use, it features a two-piece stainless steel latch bolt, a 1-inch throw deadbolt...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $941.00
    $468.17
    Subtotal:
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