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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  • Sargent 8248 LNA 26D LH Mortise Lock Sargent 8248 LNA 26D LH Mortise Lock
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    Sargent 8248 LNA 26D LH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8248 LNA is a Grade 2 mortise lock built for high-traffic commercial and institutional doors requiring strength and durability. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors and windstorm applications,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 60-8259 OP 26D Sargent Mortise Lock 60-8259 OP 26D Sargent Mortise Lock
    Quick view

    60-8259 OP 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,822.00
    $965.24
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial buildings, hospitals, schools, and secure facilities. It exceeds ANSI/BHMA Grade 1 standards and delivers superior strength, durability, and security against...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,822.00
    $965.24
    Subtotal:
  • Sargent 8251 LE1A Mortise Lock 26D LH Sargent 8251 LE1A Mortise Lock 26D LH
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    Sargent 8251 LE1A Mortise Lock 26D LH

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8251 LE1A is a Grade 2 mortise lock built for high-security commercial applications in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • Sargent 8200 Mortise Lock 26D Sargent 8200 Mortise Lock 26D
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    Sargent 8200 Mortise Lock 26D

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8200 mortise lock delivers Grade 2 certified strength and durability for commercial doors in offices, hospitals, schools, and secure facilities. This heavy-duty lockset exceeds ANSI/BHMA A156.13 standards, resists vandalism and unauthorized...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $874.68
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
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    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,614.00
    $857.88
    The Sargent 8200 is a Grade 2 mortise lock engineered for maximum security and durability in commercial and institutional settings. Ideal for offices, hospitals, schools, and behavioral health facilities, it exceeds ANSI/BHMA A156.13 standards and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,614.00
    $857.88
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,636.00
    $867.12
    The Sargent 8200 mortise lock is a high-security, Grade 1-certified lock designed for commercial buildings, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA A156.13 standards and provides superior strength, durability, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,636.00
    $867.12
    Subtotal:
  • 60-8248 LW 26D Sargent Mortise Lock 60-8248 LW 26D Sargent Mortise Lock
    Quick view

    60-8248 LW 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 60-8248 LW 26D is a heavy-duty mortise lock built for high-security commercial applications in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA Grade 1 standards and delivers superior strength, durability,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 60-8251 LE1L 26D Sargent Mortise Lock 60-8251 LE1L 26D Sargent Mortise Lock
    Quick view

    60-8251 LE1L 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 mortise lock delivers institutional-grade security for commercial and institutional doors. This ANSI/BHMA Grade 2 certified lock exceeds industry durability standards and suits offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • Sargent 8227 LNA 26D RH Mortise Lock Sargent 8227 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8227 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8227 is a Grade 2 mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA A156.13 standards, it delivers superior strength and durability for offices, hospitals, schools, and behavioral...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • Sargent 8252 LNA 26D LH Mortise Lock Sargent 8252 LNA 26D LH Mortise Lock
    Quick view

    Sargent 8252 LNA 26D LH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8252 is a heavy-duty mortise lock engineered for commercial and institutional doors requiring Grade 1 security and fire-rated performance. Built to exceed ANSI/BHMA A156.13 standards, it protects offices, hospitals, schools, and behavioral...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 26D is a Grade 2 mortise lock engineered for maximum security and durability in commercial and institutional settings. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors and windstorm applications, making...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8252 LNB 26D Mortise Lock Sargent 8252 LNB 26D Mortise Lock
    Quick view

    Sargent 8252 LNB 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8252 LNB 26D is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors, making it ideal for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
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