Top Marks Mortise Locks


Our review process

Choosing the most secure door lock can oftentimes be an overwhelming decision. We've studied over 1,600 door locks, including this Marks mortise lock, in order to lay out all the pros and cons. With details ranging from lock type to installation method, using our advanced learning system we've organized over 80,000 different variables that go into finding the best door lock. In this article we are going to highlight certain aspects of seven Marks mortise locks you'll to want to focus on to understand the benefits and disadvantages.

Before buying a Marks mortise lock, getting familiar with the brand can be helpful. Marks was established in 1977. Marks is a part of Napco Security Technologies, Inc., which is committed to providing its customers with quality security solutions. Marks specializes in keyed locks, electronic locks, deadbolts, and biometric fingerprint readers, which are sold through sales representatives across the US. Marks produces a range of quality door locks, so take a minute to consider Marks mortise locks.

Mortised locks enable greater return spring, so the door handle will retract to its original position faster. They are often installed using a mortising jig, which enables you to cut a mortise groove within the door. They use an internal lock mechanism, exhibiting extra strength and versatility. However, mortised locks are known to occasionally become faulty, causing the knob or handle to sometimes become loose or to no longer retract the latch bolt. A plus is that they can be locked from either side, which benefits doors with windows, offering an extra line of defense should the window break. They come in various sizes, which allow you to opt a lock that fits your door properly.

Our Top Ranking door locks:
Product NameLock TypeColor
Best Overall Score
1
An image of Marks 71A/3LH Entry Brass Polished Brass Lock
Marks 71A/3LH Entry Brass Polished Brass Lock
deadbolt
polished brass
Runner Up
2
An image of Marks 2750/3 RH Brass Lock
Marks 2750/3 RH Brass Lock
cylindrical
brass
Best Entry Door Lock
3
An image of Marks 114A/26D-RH Entry Chrome Effect Lock
Marks 114A/26D-RH Entry Chrome Effect Lock
sashlock
chrome effect
4
An image of Marks 21AC RH Brass Satin Lock
Marks 21AC RH Brass Satin Lock
satin
5
An image of Marks 9215AC/3-W LH Brass Polished Brass Door Lock
Marks 9215AC/3-W LH Brass Polished Brass Door Lock
sashlock
polished brass
Our Top Ranking door locks
Customer Rating
Lock Type
deadbolt
Color
polished brass
Customer Rating
Lock Type
cylindrical
Color
brass
Customer Rating
Lock Type
sashlock
Color
chrome effect
Customer Rating
Lock Type
Color
satin
Customer Rating
Lock Type
sashlock
Color
polished brass
Best Overall Score
An image of Marks 71A/3LH Entry Brass Polished Brass Lock

Perfect for a variety of frames and security needs, the Marks Brass Polished Brass Lock will keep your workplace safe. Suitable for people who are left-handed, this deadbolt means the lock is installed upright fitting the minority of the population. It is installed using a mortised design, offering a complex built-in infrastructure which can be adapted to any door. Made with a deadbolt, it provides the utmost protection against common break-in methods. Featuring a brass construction, it will resist rusting, which is great for outdoor usage. This Marks door lock uses a thumbturn to operate, features a cylinder lock, and is widely used in commercial spaces because of its reliability and strength.

    Pros
    • Made with a deadbolt, providing enhanced protection by being extra strong
    • Brass construction is a durable and reliable choice due to its tolerable features
    • Built with a mortise lock to be installed in the door, making it difficult to pick or break the lock
    Cons
    • Made with a thumbturn mechanism, making it easier for burglars to gain access to your property
    • Deadbolt lock needs to be manually locked
    • Equipped with a mortise lock, weakening the structure of a wooden door
Runner Up
An image of Marks 2750/3 RH Brass Lock

4.5 by user reviews

Popular among consumers, the highly rated Marks Brass Lock could be the perfect security solution for you. This cylindrical door lock is easy to replace, install, and re-key. This Marks lock features a keyed alike construction, meaning that you can purchase several locks that use the same key. Featuring a brass build, it will not rust so that you do not need to fear about expensive corrosion treatments. It is installed using a mortised design, offering a complex in-built infrastructure that can be locked from both the inside and outside. This single bolt cylindrical lock makes it simple and quick to lock and unlock any door using a thumbturn.

    Pros
    • Cylindrical lock is easy to replace and install
    • Features a keyed alike construction, meaning that you can buy several locks that use the same key
    • Single locking mechanism is suitable to use on interior doors
    Cons
    • Cylindrical lock won't be as durable as other lock types
    • Equipped with a mortise lockset, requiring a specific installation method done by a locksmith
    • Features a cylindrical locking mechanism, allowing it to be forced opened using lock picks
Best Entry Door Lock
An image of Marks 114A/26D-RH Entry Chrome Effect Lock

The Marks Chrome Effect Lock will fit perfectly onto your door, so you don't have to worry about your belongings being burglarized. This sashlock is installed using a mortised design, which has a complex in-built construction, adaptable to a range of sizes for any door. It is suitable for right-handed people, meaning the lock is installed upright fitting the majority of the population. With a sashlock lock, it offers extra security and has a similar design to a mortise lock, though it is more durable and hard to break through. It uses a thumbturn to operate, is ideal for exterior doors adding increased security to your home, and features a cylinder lock.

    Pros
    • Sashlocks are highly durable and hard to break through
    • Built with a mortise lock to be installed inside the door itself and can be locked from both sides
    • Features a cylindrical locking mechanism, allowing for easy rekeying
    Cons
    • Thumbturn mechanism leaves a key inoperable if the thumbturn is not properly aligned
    • Equipped with a mortise lock, making it not suitable with all door types
    • Features a cylindrical locking mechanism, allowing it to be forced opened using lock picks
Additional Picks
An image of Marks 21AC RH Brass Satin Lock

The Marks Brass Satin Lock is designed to keep your possessions safe and secure. This Marks lock is suitable for right-handed people, meaning the lock is installed upright suiting the majority of the population. It is keyed alike, meaning that you can purchase multiple locks that use the same key. Featuring a brass construction, this Marks lock is highly resistant to moisture, improving its strength for a longer service life. This mortised Marks lock is installed into the door itself, making it difficult to pick or break the lock. It is ideal for interior and exterior doors.

    Pros
    • Features a keyed alike design, meaning that you can purchase multiple locks that use the same key
    • Brass build can better tolerate extreme environments
    • Equipped with a mortise lockset, offering a complex in-built infrastructure that can be locked from both the inside and outside
    Cons
    • Equipped with a mortise lockset, making it only suitable with thicker doors
An image of Marks 9215AC/3-W LH Brass Polished Brass Door Lock

When looking to enhance security, the Marks Brass Polished Brass Lock is an ideal choice. With a sashlock lock, this sashlock offers extra security and has a similar design to a mortise lock, though it is more durable and hard to break through. It features a keyed alike construction, meaning that you can buy several locks that use the same key. Suitable for people who are left-handed, it means the lock is installed upright fitting the minority of the population. This mortised sashlock is installed into the door itself, making it difficult to pick or break the lock. Featuring a brass build, this sashlock can better withstand extreme environments. It is excellent for exterior doors and uses either a thumbturn or key to operate.

    Pros
    • Sashlocks are durable and hard to break through
    • Features a keyed alike design, allowing you to buy several locks that use the same key
    • Brass construction has an extra layer of durability, making it stronger and highly resistant to corrosion
    Cons
    • Key and thumbturn renders the key inoperable if the thumbturn is not properly aligned
    • Equipped with a mortise lock, requiring a specific installation method done by a locksmith
    • Features a cylindrical locking mechanism, allowing it to be forced opened using lock picks
An image of Marks 71A/3RH Entry Brass Polished Brass Lock

The Marks Brass Polished Brass Lock will fit perfectly onto your door, so you don't have to worry about your valuables being burglarized. This sashlock is equipped with a mortise lock, offering a complex built-in infrastructure which can be adapted to a range of sizes. It features a right-handed design, meaning the lock is installed upright suiting the majority of the population. This sashlock is built with a friction-resistant construct, reducing metal from bearing on metal, delivering effortless operation. With a sashlock lock, it provides extra security and has a similar design to a mortise lock, though it is more durable and hard to break through. It is built of brass, making it able to tolerate extreme environments. This sashlock uses a thumbturn to operate, is ideal for exterior doors adding maximum security to your home, and features a cylinder lock.

    Pros
    • Sashlocks are highly durable and hard to break through
    • Friction-resistant design reduces metal from bearing on metal, delivering effortless operation
    • Features a brass build, offering an additional layer of durability, making it stronger and extremely corrosion resistant
    Cons
    • Built with a thumbturn mechanism, making it easier for burglars to enter the premises
    • Equipped with a mortise lockset, needing a certain installation method done by a professional
An image of Marks 22AC/3-W-RHR Brass Polished Brass Door Lock

For exceptional protection and safety, choose the Marks Brass Polished Brass Lock. Suitable for right-handed people, this sashlock means the lock is installed upright fitting the majority of the population. This sashlock lock provides additional security and has a similar design to a mortise lock, though it is more durable and difficult to break through. With a double locking mechanism, it offers extra safety to protect your loved ones by keeping the door secure from both sides. It has a brass build, making it extremely moisture resistant, improving its strength for a longer service life. This mortised sashlock is installed into the door itself, making it difficult to pick or break the lock. Featuring a heavy-duty construction, this sashlock makes it more resilient to wear and tear.

    Pros
    • Sashlocks are highly durable and difficult to break through
    • Features a heavy-duty design, making it more resilient to wear and tear
    • Double locking mechanism is safer than single lock mechanism doors
    Cons
    • Equipped with a mortise lockset, weakening the structure of a wooden door
Considering a New Marks Mortise Lock: Some Points to Keep in Mind:
What to Consider When Installing a New Marks Mortise Lock
Sashlock Locks

The Marks mortise lock features the sashlock, making it more difficult to break through. They can work well with various types of doors. Sashlocks are typically approved by most insurance companies, saving your family money on your premium. They have a bolt and latch connected in the lock body, which gives them a simple design. However, they can't be installed without the help of a professional or heavy machinery, making other locks an easier, more convenient choice. If it seems like the Marks mortise lock is what you're looking for, then click here to learn more.

Cylindrical Locks

Cylindrical locks are much stronger than other locks. With one Marks mortise lock available, your property will be secure and resistant to common break-in methods. With the choice of a single or double cylinder design, these cylindrical locks allow you to have the option of using a key or thumbturn from the inside. One downside is that they do come with a master key that can open multiple locks, reducing the level of protection in your home. Additionally, they can't handle a large amount of pressure, so if you are looking for the strongest lock, you may want to consider getting another kind. A plus is that they are suitable for use with various types of knobs, so you don't have to sacrifice style for practicality and security. If this sounds like a cylindrical Marks mortise lock you are interested in, then come learn more this great one here.

Deadbolt Locks

Deadbolt locks are a lot tougher than other locks on the market. With four Marks mortise locks available for consideration, your property will be resistant to common break-in methods. Available with either a single or double cylinder design, these deadbolt locks allow you to have the option of using a key or thumbturn from the inside. They use a free spinning bolt, which makes it harder to tamper with using pliers. However, deadbolt locks have a master key that can easily be duplicated, reducing the level of security in your home. Also, they don't lock automatically, requiring manual locking and unlocking when coming and going. An advantage is that they are reinforced with a metal strike plate, giving them enhanced strength for dependable safety and security. If this sounds like a Marks mortise lock you are looking for, then check out one of the many options here.