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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  • 70V01-8225 LNJ 26D Sargent Manufacturing Mortise Lock 70V01-8225 LNJ 26D Sargent Manufacturing Mortise Lock
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    70V01-8225 LNJ 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,714.00
    $919.88
    70V01-8225 LNJ 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: $1,714.00
    $919.88
    Subtotal:
  • 70V01-8225 LNL 26D Sargent Manufacturing Mortise Lock 70V01-8225 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    70V01-8225 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,928.00
    $1,089.76
    70V01-8225 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 LNB 10B Mortise Lock, Grade 2 Sargent 8237 LNB 10B Mortise Lock, Grade 2
    Quick view

    Sargent 8237 LNB 10B Mortise Lock, Grade 2

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8237 LNB 10B is a heavy-duty mortise lock designed for commercial buildings, hospitals, schools, and secure facilities. It exceeds ANSI/BHMA Grade 2 standards and delivers superior strength and durability for high-traffic entrances where...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • Sargent 8205 Mortise Lock, Grade 2, Fire-Rated Sargent 8205 Mortise Lock, Grade 2, Fire-Rated
    Quick view

    Sargent 8205 Mortise Lock, Grade 2, Fire-Rated

    Sargent
    MSRP: $1,014.00
    $555.88
    The Sargent 8205 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional settings. Built to exceed ANSI/BHMA Grade 2 standards, it suits offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,014.00
    $555.88
    Subtotal:
  • Sargent 8200 10B Mortise Lock, Grade 2, UL Fire-Rated Sargent 8200 10B Mortise Lock, Grade 2, UL Fire-Rated
    Quick view

    Sargent 8200 10B Mortise Lock, Grade 2, UL Fire-Rated

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 10B is a heavy-duty mortise lock engineered for institutional and commercial facilities demanding maximum security and durability. Exceeding ANSI/BHMA Grade 2 standards, it serves offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • Sargent 8200 10B Mortise Lock Sargent 8200 10B Mortise Lock
    Quick view

    Sargent 8200 10B Mortise Lock

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8200 10B is a heavy-duty mortise lock engineered for institutional and commercial facilities requiring maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength against forced entry and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • Sargent 8205 Grade 2 Mortise Lock 10B Sargent 8205 Grade 2 Mortise Lock 10B
    Quick view

    Sargent 8205 Grade 2 Mortise Lock 10B

    Sargent
    MSRP: $1,678.00
    $904.76
    The Sargent 8205 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 behavioral...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,678.00
    $904.76
    Subtotal:
  • LC-8204 LNP 10B Sargent Manufacturing Mortise Lock LC-8204 LNP 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8204 LNP 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8204 LNP 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:
  • LC-8205 LNP 10B Sargent Manufacturing Mortise Lock LC-8205 LNP 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8205 LNP 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8205 LNP 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:
  • LCV10-8225 LNL 26D Sargent Manufacturing Mortise Lock LCV10-8225 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LCV10-8225 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,782.00
    $948.44
    LCV10-8225 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: $1,782.00
    $948.44
    Subtotal:
  • LCV04-8205 LNL 26D Sargent Manufacturing Mortise Lock LCV04-8205 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LCV04-8205 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,703.00
    $915.26
    LCV04-8205 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: $1,703.00
    $915.26
    Subtotal:
  • 70V10-8225 LNL 26D Sargent Manufacturing Mortise Lock 70V10-8225 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    70V10-8225 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,928.00
    $1,089.76
    70V10-8225 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:
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