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 8200 LW1B 26D Mortise Lock Sargent 8200 LW1B 26D Mortise Lock
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    Sargent 8200 LW1B 26D Mortise Lock

    Sargent
    MSRP: $1,706.00
    $916.52
    The Sargent 8200 is a heavy-duty mortise lock built for institutional and commercial applications requiring maximum security and reliability. Exceeding ANSI/BHMA Grade 2 standards, it delivers superior strength and durability for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,706.00
    $916.52
    Subtotal:
  • Sargent 8252 LNW 26D Mortise Lock, Grade 2 Sargent 8252 LNW 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8252 LNW 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8252 LNW 26D is a heavy-duty mortise lock engineered for commercial and institutional applications demanding maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, it delivers...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 60-8249 LNF 26D Sargent Mortise Lock 60-8249 LNF 26D Sargent Mortise Lock
    Quick view

    60-8249 LNF 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 mortise lock is a commercial-grade security solution for offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm applications,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8237 Mortise Lock, 26D RH, Grade 2 Sargent 8237 Mortise Lock, 26D RH, Grade 2
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    Sargent 8237 Mortise Lock, 26D RH, Grade 2

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8237 is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. ANSI/BHMA Grade 2 certified and UL-cUL listed for three-hour fire doors, it exceeds industry standards and suits...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • Sargent 8227 LNW 26D Mortise Lock, Grade 2 Sargent 8227 LNW 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8227 LNW 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8227 LNW 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial buildings. It exceeds ANSI/BHMA Grade 2 standards and is UL-listed for three-hour fire doors and windstorm applications, making it ideal...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • Sargent 8252 LNP 26D Mortise Lock, Grade 2 Sargent 8252 LNP 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8252 LNP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8252 LNP 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Exceeding ANSI/BHMA Grade 2 standards, it delivers superior strength and durability for offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 1 Sargent 8200 26D Mortise Lock, Grade 1
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 1

    Sargent
    MSRP: $1,598.00
    $851.16
    The Sargent 8200 mortise lock is a Grade 1 certified entrance and passage lock built for high-security commercial applications. It exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour fire doors and windstorm resistance, making it ideal...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,598.00
    $851.16
    Subtotal:
  • Sargent 8252 LNF 26D Mortise Lock, Grade 2 Sargent 8252 LNF 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8252 LNF 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8252 LNF 26D is a heavy-duty mortise lock built for high-security commercial applications in offices, hospitals, schools, and behavioral health facilities. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • 60-8227 LW1L 32D Sargent Mortise Lock 60-8227 LW1L 32D Sargent Mortise Lock
    Quick view

    60-8227 LW1L 32D Sargent Mortise Lock

    Sargent
    MSRP: $1,817.00
    $963.14
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial facilities, hospitals, schools, and behavioral health environments. It exceeds ANSI/BHMA Grade 2 standards and provides superior strength, security, and durability for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,817.00
    $963.14
    Subtotal:
  • 60-8252 LL 26D Sargent Mortise Lock 60-8252 LL 26D Sargent Mortise Lock
    Quick view

    60-8252 LL 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 LL 26D is a Grade 2 mortise lock engineered for maximum security and durability in commercial and institutional facilities. Exceeding ANSI/BHMA A156.13 standards, it delivers strength against forced entry and vandalism while supporting...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 LW1J 32D Mortise Lock Sargent 8200 LW1J 32D Mortise Lock
    Quick view

    Sargent 8200 LW1J 32D Mortise Lock

    Sargent
    MSRP: $1,817.00
    $963.14
    The Sargent 8200 LW1J 32D 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,817.00
    $963.14
    Subtotal:
  • Sargent 8255 LNA 26D RH Mortise Lock Sargent 8255 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8255 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8255 is a Grade 2 certified mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA A156.13 standards, it delivers superior strength and durability in offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
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