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Best Combination Lock

last updated Nov 12, 2019

How many times have you been locked out of somewhere because you either lost or did not remember the correct key? Chances are this is something that has happened numerous times to you. Could there be a better answer to avoid this annoying and inconvenient issue?

There could be, and the answer might be a combination lock. Unlike padlocks that utilize keyholes for access, combination locks are going to be opened via a code. Some models will be simple turn dials, and others will allow for custom and unique three-to-five digit codes.

Familiarizing yourself with the different types of a combination lock is going to be necessary. It is also important to understand just what you need to look for when you go out and buy the best combination lock. All this and much more will be presented to you today so let’s get this show on the road.

In a Hurry? The test winner after 8.5 hrs of research

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Desired Tools
91.2/100 our score
Features
90
Materials
90
Ease of Use
93
Use
90
Color
93
Desired Tools
Why is it better?

You can choose between a few different colors

Designed of weatherproof zinc alloy

Backed by a 30-day money-back guarantee

In a Hurry? Editors choice:
Desired Tools
Test Winner: Desired Tools
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Rating
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#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
Features
90 %
Materials
90 %
Ease of Use
93 %
Use
90 %
Color
93 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$11.97
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90
Features
90 %
Materials
93 %
Ease of Use
92 %
Use
90 %
Color
85 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$5.68
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.6
Features
90 %
Materials
94 %
Ease of Use
87 %
Use
91 %
Color
86 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$24.58
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Features
90 %
Materials
85 %
Ease of Use
93 %
Use
88 %
Color
90 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$9.99
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
Features
93 %
Materials
84 %
Ease of Use
90 %
Use
92 %
Color
86 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$8.99
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88
Features
90 %
Materials
90 %
Ease of Use
84 %
Use
90 %
Color
86 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$8.12
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.8
Features
92 %
Materials
91 %
Ease of Use
82 %
Use
88 %
Color
86 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$109.99
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Features
84 %
Materials
93 %
Ease of Use
87 %
Use
88 %
Color
84 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$8.81
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
Features
90 %
Materials
87 %
Ease of Use
84 %
Use
88 %
Color
86 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$9.99
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.6
Features
80 %
Materials
88 %
Ease of Use
78 %
Use
85 %
Color
92 %
Price Comparison Last Updated (13.12.19)
Amazon Link
$8.99

Our Top Picks for the Best Combination Locks

1. Desired Tools

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
desired tools padlock
Desired Tools Combination Lock
Desired Tools Combination Lock
Amazon Link
Features
90
Materials
90
Ease of Use
93
Use
90
Color
93
best offer for today
Amazon Link
$11.97
Pros:

You can choose between a few different colors

Designed of weatherproof zinc alloy

Backed by a 30-day money-back guarantee

Cons:

To lock it, the combination must be set

There is a reason why literally thousands of buyers around the world have raved about this particular number lock. It is one of the most secure, well-built and convenient locking systems out there.

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Features

As this best combination lock is designed with four different digits, it allows for 10,000 unique code combinations. Also, to note, when you lock this padlock, the actual code needs to be set first.

Materials

For heavy-duty use outdoors, this is not the best option. But, with its weatherproof zinc alloy and plated steel construction, it can be used for light-duty tasks outdoors.

Ease of Use

In addition to the fact that setting and re-setting the combination is straight forward, the numbers themselves are straightforward to read. This will make things even easier for you.

Use

As noted, this can be used outdoors, but it is designed to be used indoors. From lockers to storage boxes to fences, though, it can be used for a variety of different applications.

Colors

An added bonus is the fact that you can select the color you desire. You have a few different choices, and they are red, silver, green, black, and blue.

Overall

It is not too hard to see why so many users have raved about this padlock. In addition to its fantastic convenience, it is also one of the most secure options out there.

2. Master Lock 653D

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90
Master Lock 653D
Master Lock 653D
Master Lock 653D
Amazon Link
Features
90
Materials
93
Ease of Use
92
Use
90
Color
85
best offer for today
Amazon Link
$5.68
Pros:

The self-set combo function is easy to use

It is a four-digit system

Sports a heavy-duty build

Cons:

The correct combination is needed to lock it

When it comes to making combination locks, Master Lock is just a step ahead from their competition (omitting the previous entry). Their 653D locking system is one of their best and easiest to use.

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Features

As with the last one, you actually have to set the code in order to lock this. As for the code, there are four digits that are available.

Materials

To offer enhanced resistance against sawing and cutting, the shackle has been made of hardened steel. Oh, and as for the main body, it is constructed out of metal.

Ease of Use

Overall, this is incredibly easy to use thanks to the non-slip grip and the easy-to-use and easy-to-maneuver dials.

Use

This is advertised as an indoor combination lock so you should probably not use it outdoors (at least in the rain). As for indoor use, it can be used to secure virtually anything.

Colors

Now, even though this is available in a few different colors, the color you get is actually randomly selected upon shipment. So, you have no control over it.

Overall

About the only reason, you would want to pass on the Master Lock 653D is if you need a padlock for heavy-duty outdoor uses. For anything indoors, this is as good an option as any.

3. Delswin Combination Disc Padlock

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.6
Delswin Combination Disc Padlock
Delswin Combination Disc Padlock
Delswin Combination Disc Padlock
Amazon Link
Features
90
Materials
94
Ease of Use
87
Use
91
Color
86
best offer for today
Amazon Link
$24.58
Pros:

The shackle is not exposed

Thieves will not have much room to cut through the deadbolt

Can be used outdoors

Cons:

The opening is fairly narrow

The locking slider could be better

What makes this different is the fact that it is a disc padlock. Basically, the shackle is almost hidden and this minimizes its exposure. This simply adds another layer of security that you can depend on.

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Features

To make it harder for thieves to crack your code, this has been engineered with a four-digit dial. With this in play, there are 10,000 different combinations that you can choose.

Materials

Due to the main body that is comprised of stainless steel and the hardened steel shackle, this is suitable for outdoor use. Additionally, the round shielded design actually helps to minimize how exposed the shackle is.

Ease of Use

The locking slider itself is not the best but, overall, this is still very easy to program, so to speak. You should not have too many issues with it.

Use

Alright, so the opening is a little narrow but this is still highly versatile regardless. The all-weather core makes this a suitable solution for both indoor and outdoor needs.

Colors

This simply comes in a straight silver appearance. As the main body is stainless steel, this does make sense.

Overall

What makes this unique is the rounded shield design as it adds another layer of security. It is also nice that it sports an all-weather design for ultimate versatility.

4. ORIA Lock

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
ORIA Combination Lock
ORIA Combination Lock
ORIA Combination Lock
Amazon Link
Features
90
Materials
85
Ease of Use
93
Use
88
Color
90
best offer for today
Amazon Link
$9.99
Pros:

It comes in a set of two

A few different color options are available

There are 10,000 different combinations

Cons:

Not exactly heavy-duty

This is yet another incredibly popular locking system and it is quite versatile. With that said, it is not necessarily a padlock that you would use to protect some of your most precious valuables.

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Features

Each of these combination locks that you receive (as this is a pack of two) comes with four different digits. This means that there is nearly an infinite number of combinations to choose from.

Materials

These padlocks are not exactly heavy-duty but they are designed of steel and zinc alloy. While they are weatherproof, the metal utilized is rather thin.

Ease of Use

To know exactly which number is set, there is a combo side window that is utilized here. It makes setting and re-setting your combination a breeze.

Use

For both indoor and outdoor light-duty tasks, this is going to work quite well. And, as for the actual hook, it measures 3.3 centimeters.

Colors

What is nice is there are actually some different color options available. You can choose between black, blue and green which is an added bonus.

Overall

No, this is not the most rugged of options out there but it is beyond one of the best combination locks. This is largely due to its combination of security and convenience.

5. KeeKit Combo Lock

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
KeeKit Combination Lock
KeeKit Combination Lock
KeeKit Combination Lock
Amazon Link
Features
93
Materials
84
Ease of Use
90
Use
92
Color
86
best offer for today
Amazon Link
$8.99
Pros:

Designed with five different digits

Features a baking varnish surface

It is portable and compact

Cons:

Some users have had durability issues

In addition to the compact nature of this model, it also comes equipped with five different digits. Adding simply one digit amplifies the potential lock combinations from 10,000 to 100,000.

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Features

As noted, this is equipped with five different digits instead of just four. It is incredible how many more possibilities are at your disposal with the addition of only one more number.

Materials

The zinc alloy and steel central core of this lock holds up pretty well. It is weatherproof, and the shackle is made of hardened steel. With that in mind, some users have had durability issues.

Ease of Use

Due to the fact that the zero buttons have been raised slightly, it makes each number easy to set. The bright white font also pops out so you can easily see each digit with ease.

Use

In addition to the weatherproof design, which makes this suitable for outdoor use, the more massive lock ring also increases its versatility. As such, it can be used for more occasions.

Colors

While there are no additional colors to choose from, the baked varnish surface of this lock is quite striking in its appearance.

Overall

The compact nature of this lock, coupled with the additional digit makes it extremely compelling. Then again, it also means you will need to remember a five-digit code instead of a four-digit one.

6. Master Lock 178D

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88
Master Lock 178D
Master Lock 178D
Master Lock 178D
Amazon Link
Features
90
Materials
90
Ease of Use
84
Use
90
Color
86
best offer for today
Amazon Link
$8.12
Pros:

Backed by a lifetime warranty

Comes with four different dials

Ideal for outdoor uses

Cons:

There is too much friction in-between each dial

This is another one of Master Lock’s most popular and beloved combination locks. It can be used both indoors and outdoors and the dials are located underneath the main body.

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Features

As with many of the best combination locks on the market, the 178D comes equipped with four different dials. Thousands of combinations are available because of it.

Materials

The main steel body is quite durable, but it can corrode if you leave this outside. Additionally, this has been designed with a hardened steel shackle for enhanced cut resistance.

Ease of Use

For the record, a combination change tool is included for your convenience. However, it is hard to change one number at a time as there is too much friction between them.

Use

While this can still hold up great even if it corrodes (as it is designed for outdoor use), there is a risk of it happening if you leave this exposed to the elements. It also works great for indoor purposes, as well.

Colors

Master Lock does not sell this in any different color combinations. It just comes with the black metal body and the steel shackle.

Overall

Though the dials can be somewhat tricky to move individually, this is still an excellent design overall. It has also been trusted for its above-average security which is always important.

7. Master Lock Lockbox

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.8
Master Lock Lockbox
Master Lock Lockbox
Master Lock Lockbox
Amazon Link
Features
92
Materials
91
Ease of Use
82
Use
88
Color
86
best offer for today
Amazon Link
$109.99
Pros:

It is weather-resistant to -40 degrees

You can monitor your previous activity

It can be managed with a traditional code

Cons:

The smart lock features can be a bit finicky

Alright, now this is a bit different. This is actually an electronic lockbox that can be used to store some of your smaller items (such as your keys). With the implemented keypad and Bluetooth technology, this is quite versatile, as well.

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Features

While this can be managed with the compatible app, it can also be done with traditional code. And, within the app, you can set an unlimited amount of temporary codes.

Materials

Overall, this has a solid build, and the main body has even been coated for protection. Also, this lockbox is weather-resistant down to –40 degrees.

Ease of Use

The smart lock features, admittedly, could be a bit more user-friendly. It just takes some time to get used to them, but after a while, you will be more accustomed to it all.

Use

Honestly, this is best used as a storage container for some of your smaller (such as your essentials keys). And, it comes with a CR123A battery that can be replaced.

Colors

As this is an electronic lockbox, it only comes in the one color. It is quite sleek and stylish, though, so that is a plus.

Overall

This is technically a lockbox, but it also can work like a lock with a combination. It is quite versatile in its usefulness, and it is always ideal to own devices like this.

8. Master Lock 1500T

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Master Lock 1500T
Master Lock 1500T
Master Lock 1500T
Amazon Link
Features
84
Materials
93
Ease of Use
87
Use
88
Color
84
best offer for today
Amazon Link
$8.81
Pros:

Designed with anti-shim technology

Great for plenty of indoor uses

Both padlocks have the same combination

Cons:

You can’t change the codes

It can be somewhat of a pain to open

Sometimes, all you really need to get the job done is a simple and basic dial lock. With a preset three-digit combination all ready to go, this bad boy is as simple as it will ever get.

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Features

Both of the padlocks will come with the same preset three-digit combination code. And, just to note, you can’t change the combinations if you want to.

Materials

In addition to the hardened steel shackle for added strength, the locking mechanism sports anti-shim technology. This enhances security even more so.

Ease of Use

There is no way you can change the code so all you have to do with this padlock is rotate the dial correctly. But, the shackle is somewhat difficult to open.

Use

This is primarily designed for indoor uses. It is great for all types of objects such as lockers, high quality toolboxes, etc.

Colors

There really would be no reason to sell this in different color combinations so it makes sense that it is only offered in the one color.

Overall

With a pre-set combination and a rotating dial, this is a classic lock with a combination that is incredibly easy to use. While you can’t change the code, it is not too big of a deal.

9. Puroma Combo Locks

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
Puroma Combo Locks
Puroma Combo Locks
Puroma Combo Locks
Amazon Link
Features
90
Materials
87
Ease of Use
84
Use
88
Color
86
best offer for today
Amazon Link
$9.99
Pros:

Features two different patterns

The codes can be reset

Offers 10,000 different code combinations

Cons:

Not the most heavy-duty option

Attention to detail is on full display here as each side of this combo lock is designed with a different pattern. Also, with your purchase, you receive an extra lock for good measure.

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Features

There is no real surprise here as each combo lock you are presented with needs to be set with a four-digit code for access.

Materials

With its solid zinc alloy and plated steel construction, the layman is not going to be able to break into this padlock very easily. It is not super heavy-duty but it is far from cheap.

Ease of Use

Though the included instructions could have been clearer for setting your code, it will not be something that a lot of you will struggle with for too long. Plus, it will become easier over time.

Use

Small and compact, this is going to work very well for light-duty uses. For example, it could secure your sports or school gym locker. It can also work great for toolboxes, cases, and other such objects.

Colors

What is rather interesting is each side of this padlock is textured differently. This was done to meet the demands of more users and it is quite ingenious overall.

Overall

For the price and what you get, it is really hard to complain too much about this option. Just know that it is probably not going to be able to handle heavy-duty tasks.

10. BV Luggage Travel Lock

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.6
BV Luggage Travel Lock
BV Luggage Travel Lock
BV Luggage Travel Lock
Amazon Link
Features
80
Materials
88
Ease of Use
78
Use
85
Color
92
best offer for today
Amazon Link
$8.99
Pros:

Three different colors are available

It is TSA accepted

Backed by a 100 percent satisfaction guarantee

Cons:

Anyone can technically reset the code

Right away, what makes this combination lock special is that it is TSA accepted (more on that later). Due to the design, though, this is best used to stop people from taking some of your stuff that is actually in your presence.

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Features

Unlike some of the other models on this list, this is only equipped with three different digits. Thus, you only have 1000 possible combinations to work with (which is still a lot).

Materials

Nothing out of the ordinary here as this is equipped with a steel and zinc alloy main body. This adds a layer of durability and much-needed security.

Ease of Use

To reset this lock, you need to hold down the reset button (which is on the bottom of the lock) while you change the dials. However, if someone knew how this sucker operated, they could change the code to anything they wanted.

Use

As noted, this is TSA accepted and that means that it can be unlocked and relocked by TSA agents. Now, going back to the reset button, this lock is best used for situations where you are around it.

Colors

There are actually three different color choices to choose from, which is an added bonus. You can select between black, red and silver.

Overall

Really, this TSA accepted travel lock is not secure enough to protect some of your most important valuables. It can be nice for your luggage, though, to prevent any thieves from quickly getting inside of it.

Criteria Used for Evaluation

Features

The main feature you need to keep an eye on is the combination system that is implemented.

When it comes to choosing the best combination locks, one of the most important considerations is going to be the actual combination system. For these types of padlocks, you can either buy those that come with pre-set combinations (dial locks) or those that allow you to set your own. The benefit to the latter, clearly, is that you can change the code at will.

But, not all of these models will be the same. You see, some will come with three digits, others with four, and some with five. The number of digits integrated will dictate the number of code combinations that are possible. And, while one or two figures would not appear to make that much of a difference, it actually will.

Just one more digit allows a four-digit code to have 10,000 possible combinations (when compared to only 1000 with a three-digit code). This is amplified even further with a five-digit system as there then becomes 100,000 different combinations possible.

If someone had the patience, they could probably crack a three-digit code with brute force. This is far more unlikely with four digits and all-but-impossible with five. All types can have their usefulness, though, but three-digit codes are not the best for securing treasured valuables.

Materials

Not only can certain materials make a combination lock more durable but they can also make it more secure.

The utilized materials have not only an impact on a padlock’s durability but also its security. It does go hand-in-hand in this case. So, with that said, what are the most common materials that will be engineered to make these types of locks?

For the main body, you will typically either see zinc alloy or stainless steel. Both of these materials are suitable for a wide range of applications and are quite durable. Out of the two, stainless steel is overall the stronger metal. And, with the addition of chromium, stainless steel is also highly resistant to corrosion and rust.

Zinc alloy is no slouch, though, and is very strong in its own right. Zinc itself is quite a heavy element, and zinc alloy will be fused with other types of metals. These additional metals help to provide a layer of impact strength and corrosion resistance.

Now, as for the shackle, this will typically be made out of hardened steel. Given this is the area of the padlock that will be exposed, you do not want it to break very easily. Hardened steel refers to steel that has been heat-treated and tempered. This process dramatically enhances steel’s durability and, in this case, its cut-resistance.

Ease of Use

Most systems will be easy to use but there are still some factors to consider.

Generally speaking, best combination locks are not going to be too tricky to use. With that said, there are also some factors that you do need to keep in mind. Firstly, ideally, you will want padlocks that are easy to actually open, as simple as this sounds.

The shackle of the padlock is what needs to open, as this is what you need to assess. While you do not need it to be utterly flawless in operation, it should not frequently become jammed and difficult to open every time you use it. It can happen, though, if you allow an un-weathered model to remain outdoors, for example, if you have an item of outdoor furniture in your garden.

Another thing to keep in mind is how easy the dials or numbers will be to move. For those of you with stubby fingers, it can sometimes be a little tricky to turn flush numbers. The best models will sport numbers that protrude just a little bit to combat this.

And, lastly, look for numbers and fonts that are somewhat easy to read. There is nothing worse than squinting your eyes every time you go to unlock your combination lock.

Use

Not all padlocks will be able to be used in all different situations so keep that in mind.

Even though most options on the market are going to be quite versatile in the manner in which they can be used, you can’t assume that the model you go with will be ideal for your needs. This could come back to bite you in the behind. First and foremost, understand that there will be some combo locks that will be designed to stay indoors.

Thankfully, as there are a ton of models that sport stainless steel and zinc alloy cores, most of them will be suitable for outdoor use (though some less than others). Even though these two metals listed are resistant to corrosion, it does not mean they are immune to it. Metal corrodes, and there are no ifs, ands or buts about it.

Most manufacturers will indicate if their model is safe for outdoor use, though, so that is the good news. As for what you can use them for, this is where most will be very dynamic. Then again, their overall security will dictate how you want to use them.

After all, if you need a lock for your storage shed then you may want top-notch security. Meanwhile, a small padlock for your work locker may not require as much security. It just depends is all.

Color

While this section is not uber important, it can still play a role in your decision.

No, the color of your combination lock is not going to affect its performance even in the slightest. So, why also talk about a section like this, then? Look, when you strip everything else away, people are simple, and they will naturally be attracted to things they think “look good.”

You are the same, no? Regardless, some sellers will design their locks in different colors. It is not something that all engineers are concerned with, but some care about simpler things.

As you saw in the above list, some sellers will allow you the pleasure of selecting your color (which will typically only be a few) and others will not (more on that later). Overall, however, it is also not as if this section should trump any of the other ones above.

Expert Interviews & Opinions

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expert tips icon
Features

In reality, there is only one feature that you need to keep an eye on, but it is super important. To give you an idea of what will be discussed in this section, answer this rhetorical question fast. Do you think it will be harder for a thief to crack a code that has 1000 possibilities or a code that has 10,000 options? Yeah, let that question sink in a little bit.

Materials

On the outside looking in, you would think that this section would have to do with the durability that these locks provide. While this is partly true, the materials that are used to engineer a specific lock will go a long way to determining its security. With cheap materials, thieves will easily be able to destroy the lock. And you do not want that.

Ease of Use

How hard could a simple best combo lock be to operate? Speaking for most models, not too hard but there are always exceptions to the rule. There are actually a few different layers to this section and each one of them is fairly important when analyzing just how easy a specific padlock will be to use. Depending on where you use it, you may need to unlock and lock it frequently, after all.

Frequently Asked Questions

q: What does it mean when locks are TSA accepted?

a:

In short, if a lock is TSA accepted or TSA approved, it merely means that TSA agents will be able to open the lock when they check your checked baggage. This is something you need to think about if you need a lock to secure your checked baggage.

If you use a lock that is not TSA accepted, these same agents will be required to cut off your lock to access your luggage. This will only be an issue if you are traveling, however, so keep that in mind.

q: For Master Locks, how do you open on “lock”?

a:

This is a question that several buyers have when they first get one of their Master Lock. For some of them, it will be required for you to open the padlock (for the first time) with a combination. But, given that there are only numbers present, what on earth does this mean?

It should be as simple as unlocking it with the code “0000”. If this still does not work, then you will need to contact Master Lock to see what the issue is. This should work, however.

q: How often can you change your code?

a:

Much like you would do with some of your online passwords, it is sometimes advised to change your code now and again. When you do this, you will want to write down your new code to ensure that you do not forget it. But, regarding how many times you can do this, there is not going to be a limit.

This is one of the coolest aspects of these locks, quite frankly. There is no reason to change your code every day, but the fact that there is no limit is a nice touch.

q: Why do some sellers not allow you to choose the color you get?

a:

As was noted earlier, there will be some sellers (Master Lock is one of them) that will randomly select a color for your lock. For consumers, this can be a little bit frustrating as it seems like a pointless limitation to have. But, it does make sense.

Master Lock personally addressed this question and made mention of the fact that they ship all their colors (talking about one of their models) under the same SKU number. To then process the original colors would not be cost-effective for them.

q: When locking, does the code need to be set first?

a:

This is going to be the case a lot of the times. If you took the time to go through the above list, then you would know that even the best combo locks will have this “limitation.”

Yes, for some of them, to lock them, you will first need to enter the right code. Granted you do not have someone that is looking over your shoulder (check beforehand), you will have nothing to worry about. This is more time-consuming than anything (and it is still not that big of a deal).

q: What happens if you forget your code?

a:

If you set a brand-new code and then you forget what it was, you will be in a bad spot. Unlike forgetting your online password, you will not be able to create a new code (as you will need to unlock it first). Not all locks will be like this, but a majority of them will be.

Hence, this is why it is recommended to write your code down somewhere. Heck, you could even save it in a Word document and then store the file on an external hard drive (that way you always have it).