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 Mortise Lock, Grade 2 Sargent 8200 26D Mortise Lock, Grade 2
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    Sargent 8200 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,733.00
    $927.86
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial buildings, hospitals, schools, and secure facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-cUL listed for three-hour fire doors,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,733.00
    $927.86
    Subtotal:
  • Sargent 8251 LNA 26D RH Mortise Lock Sargent 8251 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8251 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,792.00
    $952.64
    The Sargent 8251 LNA 26D RH is a Grade 2 mortise lock engineered for commercial and institutional facilities requiring maximum security and durability. Built to exceed ANSI/BHMA A156.13 standards, it delivers strength against unauthorized entry and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
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  • Sargent 8245 LNP 26D Mortise Lock, Grade 2 Sargent 8245 LNP 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8245 LNP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,733.00
    $927.86
    The Sargent 8245 LNP 26D is a heavy-duty mortise lock engineered for commercial and institutional doors requiring maximum security and durability. Built to ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, it suits offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,733.00
    $927.86
    Subtotal:
  • Sargent 8200 26D RH Mortise Lock Sargent 8200 26D RH Mortise Lock
    Quick view

    Sargent 8200 26D RH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8200 mortise lock delivers Grade 1 security and durability for high-traffic commercial doors. Built for offices, hospitals, schools, and behavioral health facilities, this ANSI/BHMA Grade 2-certified lock exceeds industry standards and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • Sargent 8241 LNL 26D Mortise Lock Sargent 8241 LNL 26D Mortise Lock
    Quick view

    Sargent 8241 LNL 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8241 LNL 26D is a heavy-duty mortise lock engineered for commercial and institutional applications requiring maximum security and durability. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8240 LNA 26D RH Mortise Lock Sargent 8240 LNA 26D RH Mortise Lock
    Quick view

    Sargent 8240 LNA 26D RH Mortise Lock

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8240 is a heavy-duty mortise lock built for commercial and institutional doors requiring maximum security and durability. It exceeds ANSI/BHMA Grade 1 standards and is UL-listed for three-hour fire doors, making it ideal for offices,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    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 commercial and institutional buildings requiring maximum security and durability. 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: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 LNB 26D Mortise Lock Sargent 8200 LNB 26D Mortise Lock
    Quick view

    Sargent 8200 LNB 26D Mortise Lock

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 LNB 26D is a Grade 2 certified mortise lock engineered for maximum security and durability in commercial applications. Ideal for offices, hospitals, schools, and behavioral health facilities, it exceeds ANSI/BHMA A156.13 standards and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 Series 26D Mortise Lock Sargent 8200 Series 26D Mortise Lock
    Quick view

    Sargent 8200 Series 26D Mortise Lock

    Sargent
    MSRP: $1,654.00
    $980.72
    The Sargent 8200 Series mortise lock delivers Grade 2 ANSI/BHMA certified security for commercial doors in offices, hospitals, schools, and behavioral health facilities. This heavy-duty lock exceeds industry durability standards and resists unauthorized...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $980.72
    Subtotal:
  • Sargent 8200 26D Mortise Lock Sargent 8200 26D Mortise Lock
    Quick view

    Sargent 8200 26D Mortise Lock

    Sargent
    MSRP: $1,654.00
    $980.72
    The Sargent 8200 mortise lock is a heavy-duty access control solution for commercial facilities, hospitals, schools, and offices. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength and durability while supporting 58 different...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $980.72
    Subtotal:
  • Sargent 8245 WTL 26D Mortise Lock, Grade 2 Sargent 8245 WTL 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8245 WTL 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,686.00
    $908.12
    The Sargent 8245 WTL mortise lock delivers commercial-grade security and durability for office buildings, hospitals, schools, and institutional facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards and is UL-listed for three-hour...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,686.00
    $908.12
    Subtotal:
  • 60-8255 OP 26D Sargent Mortise Lock 60-8255 OP 26D Sargent Mortise Lock
    Quick view

    60-8255 OP 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,654.00
    $874.68
    The Sargent 8200 60-8255 OP 26D is a heavy-duty mortise lock engineered for maximum security and durability in commercial buildings, hospitals, schools, and offices. Exceeding ANSI/BHMA Grade 2 standards, it delivers superior strength against...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,654.00
    $874.68
    Subtotal:
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