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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  • LC-8204 LNJ 32D Sargent Manufacturing Mortise Lock LC-8204 LNJ 32D Sargent Manufacturing Mortise Lock
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    LC-8204 LNJ 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,486.00
    $804.12
    LC-8204 LNJ 32D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,486.00
    $804.12
    Subtotal:
  • LC-8237 LNL 32D Sargent Manufacturing Mortise Lock LC-8237 LNL 32D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 LNL 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 LNL 32D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,532.00
    $823.44
    Subtotal:
  • LC-8204 LNL 32D Sargent Manufacturing Mortise Lock LC-8204 LNL 32D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8204 LNL 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8204 LNL 32D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,532.00
    $823.44
    Subtotal:
  • Sargent 8200 LE1L 32D Mortise Lock, Grade 2 Sargent 8200 LE1L 32D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LE1L 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,806.00
    $958.52
    The Sargent 8200 LE1L 32D 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 2 standards and is UL-cUL listed for three-hour fire doors...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,806.00
    $958.52
    Subtotal:
  • 70-8205 LE1L 26D Sargent Mortise Lock 70-8205 LE1L 26D Sargent Mortise Lock
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    70-8205 LE1L 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,782.00
    $948.44
    The Sargent 70-8205 LE1L 26D is a Grade 2 mortise lock engineered for commercial and institutional facilities requiring maximum security and durability. Built to exceed ANSI/BHMA A156.13 standards, it resists unauthorized entry and vandalism while...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,782.00
    $948.44
    Subtotal:
  • Sargent 8200 LNL 32D Mortise Lock Sargent 8200 LNL 32D Mortise Lock
    Quick view

    Sargent 8200 LNL 32D Mortise Lock

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. 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: $1,678.00
    $904.76
    Subtotal:
  • LC-8205 LNB 26D Sargent Manufacturing Mortise Lock LC-8205 LNB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8205 LNB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8205 LNB 26D Sargent Manufacturing Mortise LockWhen it comes to strength and durability, SARGENT continues to set standards with the 8200 Mortise lock. The 8200 far surpasses ANSI/BHMA A156.13 Series 1000 Grade 1 standards, making it the strongest and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,508.00
    $813.36
    Subtotal:
  • Sargent 8200 LNL 32D Mortise Lock Sargent 8200 LNL 32D Mortise Lock
    Quick view

    Sargent 8200 LNL 32D Mortise Lock

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 is a Grade 1 mortise lock engineered for maximum security and durability in commercial and institutional facilities. It exceeds ANSI/BHMA A156.13 standards and is UL-cUL listed for three-hour fire doors. Ideal for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • Sargent 8200 LE1J 32D Mortise Lock, Grade 2 Sargent 8200 LE1J 32D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LE1J 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,806.00
    $958.52
    The Sargent 8200 LE1J 32D is a Grade 2 mortise lock built for high-security commercial and institutional applications. Engineered 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: $1,806.00
    $958.52
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 2 Sargent 8200 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8200 mortise lock delivers exceptional strength and security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-listed for...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $874.68
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,439.00
    $784.38
    The Sargent 8200 26D is a heavy-duty mortise lock exceeding ANSI/BHMA Grade 2 standards for maximum security and durability. Ideal for commercial, institutional, and healthcare facilities, it delivers superior strength and reliability to protect...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,439.00
    $784.38
    Subtotal:
  • TR-8237 LE1B 32D Sargent Mortise Lock TR-8237 LE1B 32D Sargent Mortise Lock
    Quick view

    TR-8237 LE1B 32D Sargent Mortise Lock

    Sargent
    MSRP: $1,014.00
    $555.88
    The Sargent 8200 TR-8237 LE1B 32D mortise lock delivers commercial-grade security and durability for office, hospital, educational, and behavioral health facilities. This ANSI/BHMA Grade 2 certified lock exceeds industry standards with thru-bolted...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,014.00
    $555.88
    Subtotal:
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