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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  • Arrow BM19 Dormitory Exit Mortise Lock, Satin Chrome Arrow BM19 Dormitory Exit Mortise Lock, Satin Chrome
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    Arrow BM19 Dormitory Exit Mortise Lock, Satin Chrome

    Arrow
    MSRP: $913.77
    $512.92
    The Arrow BM19 is a heavy-duty mortise lock designed for dormitory and institutional exit doors. Built with heavy gauge steel and a zinc dichromate finish for corrosion resistance, this lock meets...
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    MSRP: $913.77
    $512.92
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  • Arrow BM19 BRL 26D Dormitory Exit Mortise Lock BR Lever L Rose Arrow BM19 BRL 26D Dormitory Exit Mortise Lock BR Lever L Rose
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    Arrow BM19 BRL 26D Dormitory Exit Mortise Lock BR Lever L Rose

    Arrow
    MSRP: $866.58
    $492.63
    BM19 BRL 26D Arrow Mortise Lock Dormitory, Exit Mortise Lock, BR Lever, L Rose, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $866.58
    $492.63
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  • Arrow BM19 JL 26D Dormitory Exit Mortise Lock J Lever L Rose Arrow BM19 JL 26D Dormitory Exit Mortise Lock J Lever L Rose
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    Arrow BM19 JL 26D Dormitory Exit Mortise Lock J Lever L Rose

    Arrow
    MSRP: $967.40
    $545.98
    BM19 JL 26D Arrow Mortise Lock Dormitory, Exit Mortise Lock, J Lever, L Rose, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $967.40
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  • Arrow BM26 HSG 26D Privacy Mortise Lock HS Lever G Escutcheon Arrow BM26 HSG 26D Privacy Mortise Lock HS Lever G Escutcheon
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    Arrow BM26 HSG 26D Privacy Mortise Lock HS Lever G Escutcheon

    Arrow
    MSRP: $804.38
    $465.88
    BM26 HSG 26D Arrow Mortise Lock Privacy Mortise Lock, HS Lever, G Escutcheon, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $804.38
    $465.88
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  • Arrow BM34 VG 32D Double Storeroom Mortise Lock V Lever G Escutcheon Arrow BM34 VG 32D Double Storeroom Mortise Lock V Lever G Escutcheon
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    Arrow BM34 VG 32D Double Storeroom Mortise Lock V Lever G Escutcheon

    Arrow
    MSRP: $1,135.78
    $618.39
    BM34 VG 32D Arrow Mortise Lock Double Storeroom Mortise Lock, V Lever, G Escutcheon, Satin Stainless Steel Finish: 630/US32D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks...
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    MSRP: $1,135.78
    $618.39
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  • Arrow BM13 VL 26D Apartment, Front Door Mortise Lock V Lever L Rose Arrow BM13 VL 26D Apartment, Front Door Mortise Lock V Lever L Rose
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    Arrow BM13 VL 26D Apartment, Front Door Mortise Lock V Lever L Rose

    Arrow
    MSRP: $967.40
    $545.98
    BM13 VL 26D Arrow Mortise Lock Apartment, Front Door Mortise Lock, V Lever, L Rose, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $967.40
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  • Arrow BM11 VG 26D Apartment Front Door Mortise Lock V Lever G Escutcheon Arrow BM11 VG 26D Apartment Front Door Mortise Lock V Lever G Escutcheon
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    Arrow BM11 VG 26D Apartment Front Door Mortise Lock V Lever G Escutcheon

    Arrow
    MSRP: $1,014.59
    $566.27
    BM11 VG 26D Arrow Mortise Lock Apartment, Front Door Mortise Lock, V Lever, G Escutcheon, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub...
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    MSRP: $1,014.59
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  • Arrow BM12 JL 26D Storeroom Mortise Lock J Lever L Rose Arrow BM12 JL 26D Storeroom Mortise Lock J Lever L Rose
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    Arrow BM12 JL 26D Storeroom Mortise Lock J Lever L Rose

    Arrow
    MSRP: $940.59
    $534.45
    BM12 JL 26D Arrow Mortise Lock Storeroom Mortise Lock, J Lever, L Rose, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type: Mortise Lock...
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    MSRP: $940.59
    $534.45
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  • Arrow BM12 HSH 26D Storeroom Mortise Lock HS Lever H Escutcheon Arrow BM12 HSH 26D Storeroom Mortise Lock HS Lever H Escutcheon
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    Arrow BM12 HSH 26D Storeroom Mortise Lock HS Lever H Escutcheon

    Arrow
    MSRP: $886.96
    $501.39
    BM12 HSH 26D Arrow Mortise Lock Storeroom Mortise Lock, HS Lever, H Escutcheon, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $886.96
    $501.39
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  • Arrow BM19 NL 26D IC7 Dormitory Exit Mortise Lock N Lever L Rose Arrow BM19 NL 26D IC7 Dormitory Exit Mortise Lock N Lever L Rose
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    Arrow BM19 NL 26D IC7 Dormitory Exit Mortise Lock N Lever L Rose

    Arrow
    MSRP: $866.58
    $492.63
    BM19 NL 26D IC7 Arrow Mortise Lock Dormitory, Exit Mortise Lock, N Lever, L Rose, SFIC Prep Less Core, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores,...
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    MSRP: $866.58
    $492.63
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  • Arrow BM19 XG 26D Dormitory Exit Mortise Lock X Lever G Escutcheon Arrow BM19 XG 26D Dormitory Exit Mortise Lock X Lever G Escutcheon
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    Arrow BM19 XG 26D Dormitory Exit Mortise Lock X Lever G Escutcheon

    Arrow
    MSRP: $1,014.59
    $566.27
    BM19 XG 26D Arrow Mortise Lock Dormitory, Exit Mortise Lock, X Lever, G Escutcheon, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub Type:...
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    MSRP: $1,014.59
    $566.27
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  • Arrow BM17 WL 26D RH Classroom Mortise Lock W Lever L Rose
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    Arrow BM17 WL 26D RH Classroom Mortise Lock W Lever L Rose

    Arrow
    MSRP: $631.95
    $380.44
    BM17 WL 26D RH Arrow Mortise Lock Classroom Mortise Lock, W Lever, L Rose, Right Hand, Satin Chrome Finish: 626/US26D Series: BM Series Mortise Locks Type: Locks, Cylinders, Cores, Keyblanks Sub...
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    MSRP: $631.95
    $380.44
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