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 26D LH Mortise Lock Sargent 8200 26D LH Mortise Lock
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    Sargent 8200 26D LH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 mortise lock is a commercial-grade entrance and passage lock designed for high-security applications in offices, hospitals, schools, and institutional buildings. It exceeds ANSI/BHMA Grade 1 standards and provides maximum durability,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8237 EP 10B Sargent Manufacturing Mortise Lock LC-8237 EP 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EP 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 EP 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:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8200 is a Grade 1 mortise lock engineered for maximum security and durability in institutional and commercial settings. Built to exceed ANSI/BHMA A156.13 standards, it protects offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • LC-8237 EB 10B Sargent Manufacturing Mortise Lock LC-8237 EB 10B Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EB 10B Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,532.00
    $823.44
    LC-8237 EB 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:
  • Sargent 8238 OA 26D RH Mortise Lock Sargent 8238 OA 26D RH Mortise Lock
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    Sargent 8238 OA 26D RH Mortise Lock

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8238 is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. It exceeds ANSI/BHMA Grade 1 standards and is UL-cUL listed for three-hour fire doors and windstorm applications,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • LC-8227 LNP 26D Sargent Manufacturing Mortise Lock LC-8227 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8227 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,587.00
    $846.54
    LC-8227 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 and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,587.00
    $846.54
    Subtotal:
  • LC-8245 LNL 26D Sargent Manufacturing Mortise Lock LC-8245 LNL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8245 LNL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,587.00
    $846.54
    LC-8245 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 and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,587.00
    $846.54
    Subtotal:
  • Sargent 8200 LL 26D Mortise Lock Sargent 8200 LL 26D Mortise Lock
    Quick view

    Sargent 8200 LL 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 LL 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial and institutional buildings. Built to exceed ANSI/BHMA Grade 2 standards, it resists unauthorized entry and vandalism while supporting 58...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 LW1L 26D Mortise Lock Sargent 8200 LW1L 26D Mortise Lock
    Quick view

    Sargent 8200 LW1L 26D Mortise Lock

    Sargent
    MSRP: $1,706.00
    $916.52
    The Sargent 8200 is a Grade 1 mortise lock engineered for maximum security and durability in high-traffic commercial environments. Built with thru-bolted lever trim and a strengthened cylinder retainer, it exceeds ANSI/BHMA A156.13 standards and suits...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,706.00
    $916.52
    Subtotal:
  • LC-8239 LNA 26D LH Sargent Manufacturing Mortise Lock LC-8239 LNA 26D LH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 LNA 26D LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8239 LNA 26D LH 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: $1,618.00
    $859.56
    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: $1,822.00
    $965.24
    The Sargent 8200 is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it delivers exceptional durability and resistance to vandalism...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,822.00
    $965.24
    Subtotal:
  • LC-8241 OA 26D RH Sargent Manufacturing Mortise Lock LC-8241 OA 26D RH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8241 OA 26D RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8241 OA 26D RH 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: $1,618.00
    $859.56
    Subtotal:
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