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10 Best Combination Locks 2025 in the United States

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Our Top Picks

#1

Winner

Puroma Combination Lock 10 Pack 4 Digit Waterproof Locker Locks Secure Outdoor Padlock for Gym Lockers, Toolboxes, Gates, Fences, Storage, Sports Locker, Cabinets (Black)

Rating
10.0
Chosen by1,275
Ease of Use
Material

Most important from
387 reviews

Ease of Use
Setting your own code is straightforward and user-friendly, even for children.
Material
This lock provides excellent value with a durable build and an attractive design.

The Puroma Combination Lock 10 Pack offers a practical and secure option for those needing multiple padlocks, especially useful for gym lockers, toolboxes, gates, and storage units. These locks feature a 4-digit combination, which creates 10,000 possible codes—significantly better security than 3-digit alternatives. The combination is resettable, allowing you to personalize your code easily, which adds convenience and flexibility. Made from a high-strength zinc alloy body with a steel shackle, these locks are designed to resist common attacks like sawing and hammering, promising durability. They are also weatherproof, making them suitable for outdoor use without worry about rust or corrosion. The compact and lightweight design makes carrying and handling them straightforward, while the side code window and clear numbers simplify setting and unlocking—even when you’re in a hurry or carrying things.

These locks are best suited for moderate security needs such as lockers and sheds rather than high-security applications. This set provides reliable security and ease of operation at a good value, especially if you need multiple locks at once.

Rating
10.0
Chosen by1,275
Ease of Use
Material

Most important from
387 reviews

Ease of Use
Setting your own code is straightforward and user-friendly, even for children.
Material
This lock provides excellent value with a durable build and an attractive design.
#2

Puroma 1 Pack Combination Lock for Locker 4 Digit Outdoor Waterproof Padlock for School, Gym, Sports, Fence, Toolbox, Gate, Case, Outdoor, Hasp Storage, Cabinets (Black)

Rating
9.7
Ease of Use
Weather Resistance

Most important from
30951 reviews

Ease of Use
Setting up the combination is incredibly straightforward, making it easy to secure your belongings quickly.
Weather Resistance
Designed to withstand outdoor conditions, it performs reliably on gates and other exterior applications.

The Puroma 4-digit combination lock is a solid choice for anyone needing a reliable padlock for lockers, gym bags, gates, or toolboxes. It’s made from sturdy alloy steel and zinc, which gives it good durability and resistance to rust, making it suitable for outdoor use thanks to its weatherproof design. The 4-digit code offers 10,000 combinations, providing more security than traditional 3-digit locks, which is great if you want to keep your belongings safer.

One of the lock’s user-friendly features is its side window design. This lets you easily set and enter the combination with one hand, which is convenient compared to locks that require two hands. The lock is also compact and lightweight, so it’s easy to carry around or use in different places.

The materials used suggest it’s strong enough for everyday security needs but may not withstand heavy brute force. The resettable combination feature adds flexibility since you can change your code as needed. This lock is especially fitting for students, gym-goers, or anyone looking for a weather-resistant combination lock that’s straightforward to use. For everyday use, Puroma’s lock offers a good balance of convenience, durability, and security, though heavier-duty options may be preferable for high-risk areas.

Rating
9.7
Ease of Use
Weather Resistance

Most important from
30951 reviews

Ease of Use
Setting up the combination is incredibly straightforward, making it easy to secure your belongings quickly.
Weather Resistance
Designed to withstand outdoor conditions, it performs reliably on gates and other exterior applications.
#3

Master Lock Gold Outdoor Combination Lock, Heavy Duty Weather Resistant Padlock, Resettable Combination Lock for Outdoor Use 1.2 x 2 x 3.87 inches, 2 Pack, M175LFEC2

Rating
9.7
Material
Combination Length
Resettable Combination

Most important from
8712 reviews

Material
The locks are thick and sturdy, providing a strong sense of security for valuable items.
Combination Length
This lock is strong and heavy, allowing you to pick a 4-digit code, including zero, without needing a phone app.
Resettable Combination
The combination feature eliminates the need for keys, offering both convenience and peace of mind.
Weather Resistance
Its robust construction ensures it can withstand the harshest weather conditions, making it a true heavy-duty security solution.
Ease of Use
Transitions between securing and unlocking are smooth, ensuring ease of use during crucial moments.

The Master Lock Gold Outdoor Combination Lock is designed for serious security needs, making it ideal for gates, sheds, and storage units. Constructed with a robust zinc body and a reinforced bumper, it offers significant strength and reliability. Weather resistance is a standout feature, with a shackle seal and covered dials to protect against the elements, ensuring durability in outdoor settings.

The octagonal boron-carbide shackle is exceptionally tough, being 50% harder than hardened steel, which enhances its resistance to cutting and prying. The lock’s dimensions provide a good balance of size and security, with a 3/8 inch thick shackle that fits a variety of applications. Setting and recalling the four-digit combination is straightforward, and the lock is resettable without needing a tool, adding to its ease of use.

The one-directional dial feature is a helpful addition for low-light conditions. However, the lock's weight, nearly 2 pounds for the pack, might be cumbersome for some users. Also, while the combination mechanism is user-friendly, it may not deter determined thieves as much as a keyed lock might. Available in a pack of two, it offers good value for securing multiple items. This lock is best suited for users who need a durable, weather-resistant padlock for outdoor use, and appreciate the convenience of a resettable combination.

Rating
9.7
Material
Combination Length
Resettable Combination

Most important from
8712 reviews

Material
The locks are thick and sturdy, providing a strong sense of security for valuable items.
Combination Length
This lock is strong and heavy, allowing you to pick a 4-digit code, including zero, without needing a phone app.
Resettable Combination
The combination feature eliminates the need for keys, offering both convenience and peace of mind.
Weather Resistance
Its robust construction ensures it can withstand the harshest weather conditions, making it a true heavy-duty security solution.
Ease of Use
Transitions between securing and unlocking are smooth, ensuring ease of use during crucial moments.

Buying Guide for the Best Combination Locks

Choosing the right combination lock can be crucial for securing your belongings, whether it's for a locker, a bike, or a storage unit. The key to finding the best combination lock for your needs is to understand the various specifications and how they align with your specific requirements. Here are some key specs to consider when selecting a combination lock and how to navigate them.
MaterialThe material of a combination lock is important because it determines the lock's durability and resistance to tampering. Common materials include hardened steel, brass, and aluminum. Hardened steel is the most durable and resistant to cutting or breaking, making it ideal for high-security needs. Brass offers good corrosion resistance, which is useful for outdoor use. Aluminum is lightweight and suitable for less critical applications. Choose a material based on where and how you plan to use the lock.
Shackle ThicknessThe shackle is the U-shaped part of the lock that secures it to an object. Shackle thickness is a key factor in the lock's security. Thicker shackles are harder to cut or break, providing better security. Shackles typically range from 5mm to 10mm in thickness. For high-security needs, such as securing a bike or a storage unit, opt for a thicker shackle. For less critical applications, like a school locker, a thinner shackle may suffice.
Combination LengthCombination length refers to the number of digits in the lock's combination code. Longer combinations offer more security because they are harder to guess. Common lengths include 3-digit, 4-digit, and 5-digit combinations. A 3-digit combination provides 1,000 possible combinations, while a 4-digit combination offers 10,000 possibilities, and a 5-digit combination provides 100,000. For high-security needs, choose a lock with a longer combination. For everyday use, a 3-digit or 4-digit combination may be sufficient.
Resettable CombinationA resettable combination allows you to change the lock's code as needed. This feature is important for maintaining security, especially if you suspect someone has learned your combination. Locks with resettable combinations are convenient for shared use or if you frequently change the items you are securing. If you need flexibility and enhanced security, opt for a lock with a resettable combination.
Weather ResistanceWeather resistance is crucial if you plan to use the lock outdoors. A weather-resistant lock can withstand exposure to rain, snow, and extreme temperatures without rusting or malfunctioning. Look for locks labeled as weather-resistant or those made from materials like stainless steel or brass, which are less prone to corrosion. If you need a lock for outdoor use, prioritize weather resistance to ensure longevity and reliability.
Ease of UseEase of use refers to how simple it is to operate the lock. Some combination locks have larger dials or ergonomic designs that make them easier to handle, especially for individuals with limited dexterity. Consider who will be using the lock and how often it will be used. If ease of use is a priority, look for locks with user-friendly features like large, easy-to-turn dials or clear numbering.

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