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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  • 60V01-8205 LNP 26D Sargent Manufacturing Mortise Lock 60V01-8205 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    60V01-8205 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,849.00
    $976.58
    60V01-8205 LNP 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,849.00
    $976.58
    Subtotal:
  • V40-8237 LNL 26D Sargent Manufacturing Mortise Lock V40-8237 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    V40-8237 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,849.00
    $976.58
    V40-8237 LNL 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,849.00
    $976.58
    Subtotal:
  • 60V01-8225 LNP 26D Sargent Manufacturing Mortise Lock 60V01-8225 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    60V01-8225 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,928.00
    $1,089.76
    60V01-8225 LNP 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,928.00
    $1,089.76
    Subtotal:
  • V40-8205 LNL 26D Sargent Manufacturing Mortise Lock V40-8205 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    V40-8205 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,849.00
    $976.58
    V40-8205 LNL 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,849.00
    $976.58
    Subtotal:
  • 60V11-8225 LNP 26D Sargent Manufacturing Mortise Lock 60V11-8225 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    60V11-8225 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $2,123.00
    $1,171.66
    60V11-8225 LNP 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,123.00
    $1,171.66
    Subtotal:
  • Sargent 8200 LNL 10B Mortise Lock, Grade 2 Sargent 8200 LNL 10B Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LNL 10B Mortise Lock, Grade 2

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 LNL 10B is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum strength and security. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it exceeds industry standards and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • 60V40-8225 LNL 26D Sargent Manufacturing Mortise Lock 60V40-8225 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    60V40-8225 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,928.00
    $1,089.76
    60V40-8225 LNL 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,928.00
    $1,089.76
    Subtotal:
  • Sargent 8237 LNL 10B Mortise Lock, Grade 2 Sargent 8237 LNL 10B Mortise Lock, Grade 2
    Quick view

    Sargent 8237 LNL 10B Mortise Lock, Grade 2

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8237 LNL 10B is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Built to ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, this lock delivers exceptional strength and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • LC-8204 LNL 10B Sargent Manufacturing Mortise Lock LC-8204 LNL 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8204 LNL 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8204 LNL 10B 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:
  • LCV04-8237 LNL 26D Sargent Manufacturing Mortise Lock LCV04-8237 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LCV04-8237 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,703.00
    $915.26
    LCV04-8237 LNL 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,703.00
    $915.26
    Subtotal:
  • 70V04-8237 LNL 26D Sargent Manufacturing Mortise Lock 70V04-8237 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    70V04-8237 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,849.00
    $976.58
    70V04-8237 LNL 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...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,849.00
    $976.58
    Subtotal:
  • LC-8237 LNL 10B Sargent Manufacturing Mortise Lock LC-8237 LNL 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 LNL 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 LNL 10B 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:
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