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-8238 LNA 26D RH Sargent Manufacturing Mortise Lock LC-8238 LNA 26D RH Sargent Manufacturing Mortise Lock
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    LC-8238 LNA 26D RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,581.00
    $844.02
    LC-8238 LNA 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: $1,581.00
    $844.02
    Subtotal:
  • Sargent 8200 32D Mortise Lock, Grade 2, Fire-Rated Sargent 8200 32D Mortise Lock, Grade 2, Fire-Rated
    Quick view

    Sargent 8200 32D Mortise Lock, Grade 2, Fire-Rated

    Sargent
    MSRP: $1,723.00
    $923.66
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial buildings, hospitals, schools, and offices that demand superior security and reliability. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,723.00
    $923.66
    Subtotal:
  • 60-8237 LW1W 32D Sargent Mortise Lock 60-8237 LW1W 32D Sargent Mortise Lock
    Quick view

    60-8237 LW1W 32D Sargent Mortise Lock

    Sargent
    MSRP: $1,730.00
    $926.60
    The Sargent 8200 mortise lock is a heavy-duty security solution for commercial and institutional facilities requiring maximum strength and reliability. Exceeding ANSI/BHMA Grade 2 standards, this lock delivers superior durability for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,730.00
    $926.60
    Subtotal:
  • 60-8238 LNL 32D Sargent Mortise Lock 60-8238 LNL 32D Sargent Mortise Lock
    Quick view

    60-8238 LNL 32D Sargent Mortise Lock

    Sargent
    MSRP: $1,846.00
    $975.32
    The Sargent 8200 mortise lock delivers Grade 2 certified strength and security for high-traffic commercial doors. Built for offices, hospitals, schools, and behavioral health facilities, it exceeds ANSI/BHMA A156.13 standards with thru-bolted lever trim,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,846.00
    $975.32
    Subtotal:
  • LC-8238 LNA 26D LH Sargent Manufacturing Mortise Lock LC-8238 LNA 26D LH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8238 LNA 26D LH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,581.00
    $844.02
    LC-8238 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: $1,581.00
    $844.02
    Subtotal:
  • LC-8239 LNF 26D Sargent Manufacturing Mortise Lock LC-8239 LNF 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8239 LNF 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8239 LNF 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 8238 LNB 32D Mortise Lock, Grade 2 Sargent 8238 LNB 32D Mortise Lock, Grade 2
    Quick view

    Sargent 8238 LNB 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,846.00
    $975.32
    The Sargent 8238 LNB 32D is a heavy-duty mortise lock engineered for commercial doors requiring maximum security and durability. Built to ANSI/BHMA Grade 2 standards and UL-cUL listed for three-hour fire doors, it serves offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,846.00
    $975.32
    Subtotal:
  • Sargent 8238 LNF 32D Mortise Lock Sargent 8238 LNF 32D Mortise Lock
    Quick view

    Sargent 8238 LNF 32D Mortise Lock

    Sargent
    MSRP: $1,897.00
    $996.74
    The Sargent 8238 LNF 32D is a heavy-duty mortise lock built for high-security commercial and institutional applications. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength and durability for office buildings, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,897.00
    $996.74
    Subtotal:
  • LC-8255 LNF 26D Sargent Manufacturing Mortise Lock LC-8255 LNF 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8255 LNF 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,553.00
    $832.26
    LC-8255 LNF 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: $1,553.00
    $832.26
    Subtotal:
  • LC-8267 LNE 26D Sargent Manufacturing Mortise Lock LC-8267 LNE 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8267 LNE 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,621.00
    $860.82
    LC-8267 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: $1,621.00
    $860.82
    Subtotal:
  • Sargent 8200 LNE 32D Mortise Lock, Grade 2 Sargent 8200 LNE 32D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LNE 32D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,897.00
    $996.74
    The Sargent 8200 LNE 32D is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and fire-rated performance. Exceeding ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, this lock...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,897.00
    $996.74
    Subtotal:
  • LC-8240 OA 26D RH Sargent Manufacturing Mortise Lock LC-8240 OA 26D RH Sargent Manufacturing Mortise Lock
    Quick view

    LC-8240 OA 26D RH Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,618.00
    $859.56
    LC-8240 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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