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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  • Best 45HCAB5606 Series Mortise Lock Best 45HCAB5606 Series Mortise Lock
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    Best 45HCAB5606 Series Mortise Lock

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    MSRP: $709.00
    $416.89
    The Best 45H Series Mortise Lock is a heavy-duty mortise lock built for commercial and industrial doors that demand strength and reliability. Its solid one-piece stainless steel latch provides 50%...
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  • Best 45HCAAD619 Series Mortise Lock, Stainless Steel Best 45HCAAD619 Series Mortise Lock, Stainless Steel
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    Best 45HCAAD619 Series Mortise Lock, Stainless Steel

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    MSRP: $453.00
    $266.36
    The Best 45H Series mortise lock is a heavy-duty security solution designed for commercial and industrial applications where strength and reliability are paramount. Its one-piece stainless steel...
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    MSRP: $453.00
    $266.36
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  • BM26 NL 26D Arrow Mortise Lock BM26 NL 26D Arrow Mortise Lock
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    BM26 NL 26D Arrow Mortise Lock

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    MSRP: $757.19
    $445.59
    BM26 NL 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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  • BM02 BRG 26D Arrow Mortise Lock BM02 BRG 26D Arrow Mortise Lock
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    BM02 BRG 26D Arrow Mortise Lock

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    MSRP: $804.38
    $465.88
    BM02 BRG 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength...
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    MSRP: $804.38
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  • BM26 BRH 26D Arrow Mortise Lock BM26 BRH 26D Arrow Mortise Lock
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    BM26 BRH 26D Arrow Mortise Lock

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    MSRP: $804.38
    $465.88
    BM26 BRH 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength...
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  • BM17 NL 26D Arrow Mortise Lock BM17 NL 26D Arrow Mortise Lock
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    BM17 NL 26D Arrow Mortise Lock

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    MSRP: $839.77
    $481.10
    BM17 NL 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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    MSRP: $839.77
    $481.10
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  • BM15 XH 26D Arrow Mortise Lock
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    BM15 XH 26D Arrow Mortise Lock

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    MSRP: $756.53
    $445.31
    BM15 XH 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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  • BM12 NL 26D Arrow Mortise Lock BM12 NL 26D Arrow Mortise Lock
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    BM12 NL 26D Arrow Mortise Lock

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    MSRP: $839.77
    $481.10
    BM12 NL 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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  • BM12 HSL 3 IC7 Arrow Mortise Lock BM12 HSL 3 IC7 Arrow Mortise Lock
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    BM12 HSL 3 IC7 Arrow Mortise Lock

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    MSRP: $884.82
    $500.47
    BM12 HSL 3 IC7 Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength...
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  • BM19 HSL 26D Arrow Mortise Lock BM19 HSL 26D Arrow Mortise Lock
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    BM19 HSL 26D Arrow Mortise Lock

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    MSRP: $866.58
    $492.63
    BM19 HSL 26D Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength...
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    MSRP: $866.58
    $492.63
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  • BM17 HSL 3 Arrow Mortise Lock BM17 HSL 3 Arrow Mortise Lock
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    BM17 HSL 3 Arrow Mortise Lock

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    MSRP: $884.82
    $500.47
    BM17 HSL 3 Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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    MSRP: $884.82
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  • BM27 BRL 3 Arrow Mortise Lock BM27 BRL 3 Arrow Mortise Lock
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    BM27 BRL 3 Arrow Mortise Lock

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    MSRP: $884.82
    $500.47
    BM27 BRL 3 Arrow Mortise LockArrow mortise locks are offered in a complete range of functions designed for commercial, institutional and industrial applications. They are engineered for strength and...
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    MSRP: $884.82
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