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-8252 LL 26D Sargent Manufacturing Mortise Lock LC-8252 LL 26D Sargent Manufacturing Mortise Lock
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    LC-8252 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8252 LL 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...
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    MSRP: $1,548.00
    $830.16
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  • LC-8237 LL 26D Sargent Manufacturing Mortise Lock LC-8237 LL 26D Sargent Manufacturing Mortise Lock
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    LC-8237 LL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8237 LL 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...
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    MSRP: $1,508.00
    $813.36
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  • LC-8289 LNW 26D Sargent Manufacturing Mortise Lock LC-8289 LNW 26D Sargent Manufacturing Mortise Lock
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    LC-8289 LNW 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,597.00
    $850.74
    LC-8289 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...
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    MSRP: $1,597.00
    $850.74
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  • LC-8237 EL 26D Sargent Manufacturing Mortise Lock LC-8237 EL 26D Sargent Manufacturing Mortise Lock
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    LC-8237 EL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8237 EL 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...
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    Qty in Cart: 0
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    MSRP: $1,508.00
    $813.36
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  • LC-8249 EL 26D Sargent Manufacturing Mortise Lock LC-8249 EL 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8249 EL 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,548.00
    $830.16
    LC-8249 EL 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...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,548.00
    $830.16
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  • LC-8237 EB 26D Sargent Manufacturing Mortise Lock LC-8237 EB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 EB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8237 EB 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...
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    Qty in Cart: 0
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    Price:
    MSRP: $1,508.00
    $813.36
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  • LC-8225 LNF 26D Sargent Manufacturing Mortise Lock LC-8225 LNF 26D Sargent Manufacturing Mortise Lock
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    LC-8225 LNF 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,646.00
    $871.32
    LC-8225 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...
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    Qty in Cart: 0
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    MSRP: $1,646.00
    $871.32
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  • LC-8237 LB 26D Sargent Manufacturing Mortise Lock LC-8237 LB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8237 LB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,508.00
    $813.36
    LC-8237 LB 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...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,508.00
    $813.36
    Subtotal:
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  • LC-8255 LNE 32D Sargent Manufacturing Mortise Lock LC-8255 LNE 32D Sargent Manufacturing Mortise Lock
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    LC-8255 LNE 32D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,577.00
    $842.34
    LC-8255 LNE 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...
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    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,577.00
    $842.34
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  • LC-8256 LNB 26D Sargent Manufacturing Mortise Lock LC-8256 LNB 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8256 LNB 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,539.00
    $826.38
    LC-8256 LNB 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...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,539.00
    $826.38
    Subtotal:
    Add to Cart
  • LC-8235 LNJ 26D Sargent Manufacturing Mortise Lock LC-8235 LNJ 26D Sargent Manufacturing Mortise Lock
    Quick view

    LC-8235 LNJ 26D Sargent Manufacturing Mortise Lock

    Sargent
    MSRP: $1,373.00
    $726.66
    LC-8235 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...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,373.00
    $726.66
    Subtotal:
    Add to Cart
  • Sargent 8200 26D Mortise Lock, Grade 1 Sargent 8200 26D Mortise Lock, Grade 1
    Quick view

    Sargent 8200 26D Mortise Lock, Grade 1

    Sargent
    MSRP: $1,840.00
    $972.80
    The Sargent 8200 is a high-security mortise lock designed for commercial and institutional applications requiring maximum durability and theft resistance. It exceeds ANSI/BHMA Grade 1 standards and is UL-cUL listed for three-hour fire doors and windstorm...
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    MSRP: $1,840.00
    $972.80
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