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-8217 LNJ 32D Sargent Manufacturing Mortise Lock LC-8217 LNJ 32D Sargent Manufacturing Mortise Lock
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    LC-8217 LNJ 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,526.00
    $820.92
    LC-8217 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: $1,526.00
    $820.92
    Subtotal:
  • LC-8256 LNJ 26D Sargent Manufacturing Mortise Lock LC-8256 LNJ 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8256 LNJ 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,322.00
    $705.24
    LC-8256 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 and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,322.00
    $705.24
    Subtotal:
  • 70-8226 OA 26D RH Sargent Mortise Lock 70-8226 OA 26D RH Sargent Mortise Lock
    Quick view

    70-8226 OA 26D RH Sargent Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and durability. It exceeds ANSI/BHMA Grade 2 standards and is UL-cUL listed for three-hour fire doors and windstorm...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8248 LNE 26D Sargent Manufacturing Mortise Lock LC-8248 LNE 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8248 LNE 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8248 LNE 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: $1,618.00
    $859.56
    Subtotal:
  • Sargent 8246 LNA Mortise Lock 26D RH Sargent 8246 LNA Mortise Lock 26D RH
    Quick view

    Sargent 8246 LNA Mortise Lock 26D RH

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8246 LNA is a heavy-duty mortise lock designed for commercial buildings, hospitals, schools, and security-sensitive facilities. It exceeds ANSI/BHMA Grade 1 standards and provides superior strength, durability, and resistance to unauthorized...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8237 OP 26D Sargent Manufacturing Mortise Lock LC-8237 OP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 OP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8237 OP 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 26D Mortise Lock, Grade 2 Sargent 8200 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 26D is a heavy-duty mortise lock engineered for institutional and commercial facilities demanding maximum security and durability. Exceeding ANSI/BHMA Grade 2 standards, it resists forced entry and vandalism in offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8217 OP 26D Sargent Manufacturing Mortise Lock LC-8217 OP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8217 OP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,530.00
    $822.60
    LC-8217 OP 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: $1,530.00
    $822.60
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional settings. Exceeding ANSI/BHMA Grade 1 standards, it protects offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8216 OP 26D Sargent Manufacturing Mortise Lock LC-8216 OP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8216 OP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,530.00
    $822.60
    LC-8216 OP 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: $1,530.00
    $822.60
    Subtotal:
  • LC-8216 LNW 26D Sargent Manufacturing Mortise Lock LC-8216 LNW 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8216 LNW 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,581.00
    $844.02
    LC-8216 LNW 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: $1,581.00
    $844.02
    Subtotal:
  • Sargent 8200 LNF 26D Mortise Lock Sargent 8200 LNF 26D Mortise Lock
    Quick view

    Sargent 8200 LNF 26D Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 LNF 26D is a Grade 2 mortise lock built for high-security commercial and institutional applications. It exceeds ANSI/BHMA A156.13 standards and is UL-cUL listed for three-hour fire doors and windstorm use. Designed for offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
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