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

Filter By

Sort By:

Display Type:
Filters
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 70-8255 LE1B 26D Sargent Mortise Lock 70-8255 LE1B 26D Sargent Mortise Lock
    Quick view

    70-8255 LE1B 26D Sargent Mortise Lock

    Sargent
    MSRP: $1,782.00
    $948.44
    The Sargent 8200 70-8255 LE1B mortise lock in 26D finish delivers Grade 2 certified strength and security for commercial doors. Built to exceed ANSI/BHMA A156.13 standards, this lock suits offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,782.00
    $948.44
    Subtotal:
  • Sargent 8240 OP 26D Mortise Lock, Grade 2 Sargent 8240 OP 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8240 OP 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8240 OP 26D is a heavy-duty mortise lock built for commercial and institutional doors where security and durability are non-negotiable. Exceeding ANSI/BHMA Grade 2 standards, it's ideal for offices, hospitals, schools, and behavioral health...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,840.00
    $972.80
    Subtotal:
  • Sargent 8200 LW1F 26D Mortise Lock, Grade 2 Sargent 8200 LW1F 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8200 LW1F 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,793.00
    $953.06
    The Sargent 8200 LW1F 26D is a heavy-duty mortise lock built for high-traffic commercial and institutional doors. ANSI/BHMA Grade 2 certified and UL-listed for three-hour fire doors, it delivers superior strength and security for offices, hospitals,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,793.00
    $953.06
    Subtotal:
  • Sargent 8200 26D Mortise Lock, Grade 2, Fire Rated Sargent 8200 26D Mortise Lock, Grade 2, Fire Rated
    Quick view

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

    Sargent
    MSRP: $1,873.00
    $986.66
    The Sargent 8200 mortise lock is a heavy-duty Grade 2 certified solution for commercial doors requiring maximum security and durability. Built to exceed ANSI/BHMA A156.13 standards, it suits offices, hospitals, schools, and behavioral health facilities...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,873.00
    $986.66
    Subtotal:
  • 70-8251 LE1A 26D LH Sargent Mortise Lock 70-8251 LE1A 26D LH Sargent Mortise Lock
    Quick view

    70-8251 LE1A 26D LH Sargent Mortise Lock

    Sargent
    MSRP: $1,867.00
    $984.14
    The Sargent 8200 Series LE1A mortise lock delivers commercial-grade security for office buildings, hospitals, schools, and institutional facilities. This Grade 2 certified lock exceeds ANSI/BHMA A156.13 standards with thru-bolted lever trim, strengthened...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,867.00
    $984.14
    Subtotal:
  • Sargent 8267 LNF 26D Mortise Lock, Grade 2 Sargent 8267 LNF 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8267 LNF 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,767.00
    $942.14
    The Sargent 8267 LNF 26D is a heavy-duty mortise lock engineered for commercial doors requiring maximum security and durability. Built to ANSI/BHMA Grade 2 standards and UL-listed for three-hour fire doors, it solves the need for reliable access control...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,767.00
    $942.14
    Subtotal:
  • Sargent 8255 LW 26D Mortise Lock, Grade 2 Sargent 8255 LW 26D Mortise Lock, Grade 2
    Quick view

    Sargent 8255 LW 26D Mortise Lock, Grade 2

    Sargent
    MSRP: $1,699.00
    $913.58
    The Sargent 8255 LW 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength and durability in offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,699.00
    $913.58
    Subtotal:
  • Sargent 8259 LNB Grade 2 Mortise Lock, 32D Finish Sargent 8259 LNB Grade 2 Mortise Lock, 32D Finish
    Quick view

    Sargent 8259 LNB Grade 2 Mortise Lock, 32D Finish

    Sargent
    MSRP: $1,846.00
    $975.32
    The Sargent 8259 LNB is a Grade 2 mortise lock built for high-security commercial applications in offices, hospitals, schools, and institutional settings. It exceeds ANSI/BHMA A156.13 standards, offering superior strength and durability with UL-cUL...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,846.00
    $975.32
    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: $1,792.00
    $952.64
    The Sargent 8200 26D is a heavy-duty mortise lock engineered for high-security commercial and institutional applications. Built to exceed ANSI/BHMA Grade 2 standards, it delivers superior strength and reliability for office buildings, hospitals, schools,...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,792.00
    $952.64
    Subtotal:
  • 60-8267 LE1A 26D LH Sargent Mortise Lock 60-8267 LE1A 26D LH Sargent Mortise Lock
    Quick view

    60-8267 LE1A 26D LH Sargent Mortise Lock

    Sargent
    MSRP: $1,818.00
    $963.56
    The Sargent 8200 LE1A mortise lock delivers Grade 2 certified strength and security for commercial doors in offices, hospitals, schools, and behavioral health facilities. It exceeds ANSI/BHMA A156.13 standards with thru-bolted lever trim, strengthened...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,818.00
    $963.56
    Subtotal:
  • Sargent 8241 LNE Mortise Lock, 26D Satin Chrome Sargent 8241 LNE Mortise Lock, 26D Satin Chrome
    Quick view

    Sargent 8241 LNE Mortise Lock, 26D Satin Chrome

    Sargent
    MSRP: $1,910.00
    $1,082.20
    The Sargent 8241 LNE is a heavy-duty mortise lock engineered for commercial and institutional buildings requiring maximum security and durability. Exceeding ANSI/BHMA Grade 1 standards, it delivers superior strength for offices, hospitals, schools, and...
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,910.00
    $1,082.20
    Subtotal:
  • LC-8255 LNP 26D Sargent Manufacturing Mortise Lock LC-8255 LNP 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8255 LNP 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8255 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: $1,508.00
    $813.36
    Subtotal:
  • Total: items /

Adding your products to cart