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The Best Heavy Duty Padlock

Last updated on May 28, 2020

We looked at the top 8 Heavy Duty Padlocks and dug through the reviews from 14 of the most popular review sites including Gadgets Spy, Property Guard Master, Jen Reviews, A Secure Life, Locksmith Nerd, Reloader Addict and more. The result is a ranking of the best Heavy Duty Padlocks.

Best Heavy Duty Padlock

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Our Picks For The Top Heavy Duty Padlocks

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall

ABUS Stainless Steel Padlock

ABUS

Stainless Steel Padlock

Overall Take

Short ShackleThe ABUS Stainless Steel Padlock is a highly secure style of lock that will give you the greatest peace of mind when you lock up your valuables.

Experts Included
DWYM Tools Experts plus Jen Reviews, Lock Down Pros, Lock Safeguard, Locksmith Nerd. Along with user reviews from Amazon.
Pros
" The ABUS 20-70 Diskus is our best round or circular padlock for its price."
Cons
"It also has a very small area between the shackle and the body, so locking it on smaller chains, or cabinets may prove the best way to make the most of your ABUS Diskus."

FJM Security Chrome Padlock

FJM Security

Chrome Padlock

Overall Take

No-Spring DesignThe FJM Security Chrome Padlock is ideal for outdoor use in areas with salt and moisture.

Experts Included
DWYM Tools Experts plus Locksmith Nerd, Ready Zeal and 1 more. Along with user reviews from Amazon.
Pros
" It can not be easily cut or sawed owing to the freely rotating shackle. Moreover, it is ideal for gates and storage units because of its D shape."
Cons
"Picking resistance is low due to the discs not containing false gates"

Schlage Solid Steel Padlock, 2-Pack

Schlage

Solid Steel Padlock, 2-Pack

Overall Take

Good ValueThe Schlage Solid Steel Padlock, 2-Pack boasts a hardened solid steel padlock body (63.5 millimeter) with a 2 1/2-inch Molybdenum shackle for increase

Experts Included
DWYM Tools Experts plus Gadgets Spy. Along with user reviews from Amazon.
Pros
" The entire body is made of stainless steel, but the shackle is a 2 ½ inch molybdenium shackle. It’s made to be extremely secure, and is resistant to bolt cutters and blades. Since this is an open, completely exposed shackle,..."
  The Best Value

Master Lock Shackle Padlock

Master Lock

Shackle Padlock

Overall Take

Long ShackleThe Master Lock Shackle Padlock is a great option when you need a lock with a longer-than-normal reach.

Experts Included
DWYM Tools Experts plus Property Guard Master. Along with user reviews from Amazon.
Pros
" Most people who use this lock love the security they get for such an affordable price."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
15

Products Considered

We identified the majority of the heavy duty padlocks available to purchase.
8

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

14

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Gadgets Spy, Property Guard Master, Jen Reviews, A Secure Life, Locksmith Nerd.

4,216

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, Home Depot, Walmart and 5 others.

Our experts reviewed the top 8 Heavy Duty Padlocks and also dug through the reviews from 14 of the most popular review sites including Gadgets Spy, Property Guard Master, Jen Reviews, A Secure Life, Locksmith Nerd, Reloader Addict and more. The result is a ranking of the best of the best Heavy Duty Padlocks.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

ABUS Stainless Steel Padlock

Our Expert Score
9.0
4 expert reviews
User Summarized Score
9.0
831 user reviews
Our Take

We like how short the shackle is on the ABUS Stainless Steel Padlock as it makes this style of lock much harder for a casual thief to break into. The lack of springs in this design further enhance the security of the lock by removing the ability for someone to drill into it and release the locking mechanism.

What other experts liked
The ABUS 20-70 Diskus is our best round or circular padlock for its price.
- Jen Reviews
On the one hand, the Diskus does not have to rely on a spring to open and close, which makes it far more impervious to drill damage. It also reaps the benefits of a closed shackle by having the bulk...
- Lock Down Pros
It’s the quality that helps them to survive this long. ABUS uses the sturdy stainless steel in this lock to make the users believe at the very first look. The Diskus deep welding technology makes it stronger to fight...
- Lock Safeguard
High security
- Locksmith Nerd
What other experts didn't like
It also has a very small area between the shackle and the body, so locking it on smaller chains, or cabinets may prove the best way to make the most of your ABUS Diskus.
- Lock Down Pros
Might get jammed on a cold winter day
- Locksmith Nerd

The Best Bang For Your Buck

Master Lock Shackle Padlock

Our Expert Score
0.0
1 expert reviews
User Summarized Score
8.6
232 user reviews
Our Take

The long shackle on the Master Lock Shackle Padlock makes this product ideal for scenarios that require the padlock to have a longer reach, often the case when you want to lock a large chain around a gate or some similar application. The durable materials used also add to the security of this Master Lock Shackle Padlock.

What other experts liked
Most people who use this lock love the security they get for such an affordable price.
- Property Guard Master
What other experts didn't like

Overall Product Rankings

ABUS Stainless Steel Padlock

1. ABUS Stainless Steel Padlock

Overall Score: 9.6
Reviews Included: 6

FJM Security Chrome Padlock

2. FJM Security Chrome Padlock

Overall Score: 9.5
Reviews Included: 4

Schlage Solid Steel Padlock, 2-Pack

3. Schlage Solid Steel Padlock, 2-Pack

Overall Score: 9.1
Reviews Included: 3

Master Lock Shackle Padlock

4. Master Lock Shackle Padlock

Overall Score: 9.1
Reviews Included: 4

Brinks Long Shackle Padlock

5. Brinks Long Shackle Padlock

Overall Score: 9.0
Reviews Included: 2

Stanley Hardened Steel Padlock

6. Stanley Hardened Steel Padlock

Overall Score: 8.8
Reviews Included: 5

Kwikset SmartKey Padlock

7. Kwikset SmartKey Padlock

Overall Score: 8.8
Reviews Included: 5

Crystal Vision Alarm Padlock

8. Crystal Vision Alarm Padlock

Overall Score: 8.5
Reviews Included: 3

Our Heavy Duty Padlock Findings

ABUS Stainless Steel Padlock

What We Liked: We like how short the shackle is on the ABUS Stainless Steel Padlock as it makes this style of lock much harder for a casual thief to break into. The lack of springs in this design further enhance the security of the lock by removing the ability for someone to drill into it and release the locking mechanism.

FJM Security Chrome Padlock

What We Liked: The design of the FJM Security Chrome Padlock removes the use of a spring, which is a weak point in some styles of padlocks. This security is matched by chrome-plated metal that withstands outdoor elements very well.

Schlage Solid Steel Padlock, 2-Pack

What We Liked: The Schlage Solid Steel Padlock, 2-Pack boasts a hardened solid steel padlock body (63.5 millimeter) with a 2 1/2-inch Molybdenum shackle for increased security.

Master Lock Shackle Padlock

What We Liked: The long shackle on the Master Lock Shackle Padlock makes this product ideal for scenarios that require the padlock to have a longer reach, often the case when you want to lock a large chain around a gate or some similar application. The durable materials used also add to the security of this Master Lock Shackle Padlock.

Kwikset SmartKey Padlock

What We Liked: The ability to rekey the Kwikset SmartKey Padlock to work with a typical house key makes this lock very convenient to use since you don’t need to keep track of a separate key for it. The ball-bearings on the inside also make it impervious to pry or hammer attacks.

Crystal Vision Alarm Padlock

What We Liked: The 130db alarm on the Crystal Vision Alarm Padlock is sure to scare away any potential thieves as it blares a loud alarm if they attempt to break into it. The lock is weatherproof and made from heavy-duty materials to ensure an added level of security.

Our Expert Consultant

Vicki Liston 
Home Improvement Expert

Vicki Liston writes, produces, and narrates “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

Home improvement and all things DIY have been Liston’s passion since she bought her first house in 2007 and she started making video blogs in 2014. She’s performed hundreds of DIY projects, from small ones to major, wall-smashing renovations and can teach you how to make a trendy DIY barn door for cheap. The proceeds earned from “On The Fly…DIY” are donated to no-kill animal shelters and rescue organizations. You can find her show on Prime Video.

Our Heavy Duty Padlock Buying Guide

Padlocks are the first line of defense between your valuable items and a pair of curious or devious hands that you might not want touching your goods. Padlocks are made of many types of metals, but generally, a carbide or alloy steel lock is the most durable metal and should be something you want to make sure you get in order to maximize the security you’re receiving.

Padlocks come in a wide range of sizes, from tiny locks designed to secure your luggage while you travel to heavy-duty locks that are used to secure doors or fences that might need a beefier padlock.

“With regards to heavy-duty padlocks, think ‘bigger is better,’ says Vicki Liston, writer, producer, and narrator of “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.  “The same goes for the number of pins.  The more pins in a lock, the harder it is to pick so a six-pin model will be more secure than its five-pin counterpart.”

One feature that some padlocks have is a freely rotating shackle that removes typical weak spots found in spring-loaded padlocks, which are susceptible to being drilled into as a means of breaking the lock. The models with the freely rotating shackle will still need to be made from high strength steel and sometimes they come in coatings like chrome that help them resist outdoor and marine environments.

If the ultimate security of your padlock is the highest priority to you, look for heavy-duty models that will get you into a territory that makes them much harder for a thief to break. New technology in battery-power has introduced a difficult challenge for padlocks because thieves can be armed with rotary cutting tools that operate with a small battery, allowing them to have a pocket-sized tool that can cut through a lot of metals. This means that the weakest spot in many padlocks is simply the thinnest section of the lock, which is the shackle part that actually goes through the hardware that it is locking to. This can be combatted by using a round padlock that has a very small exposed shackle part that is mostly covered by the body of the padlock and also the hardware it’s attached to. These round padlocks are one of the most secure padlocks due to this design feature, assuming they are made with high-strength metals. An added benefit to the round padlock is that it can eliminate the use of internal springs, meaning a drill won’t be effective at breaking the lock by itself.

If you’re looking for even more security, you would want to find a lock that can’t be bumped open.

“Bumping is not only an effective break-in method for door locks — it can work on padlocks as well,” says Liston. “Bumping requires a special key and a mallet which ‘bumps’ the inner pins to realign to the special key’s shape and thus, unlocks with ease.”

DWYM Fun Fact

Padlocks are an old technology that dates back to the Roman era as early as 500BC. The metallurgy has improved greatly since those times, but the use of a lock to keep thieves away from your valuable items is an impressively old tradition.

The Heavy Duty Padlock Tips and Advice

  • Choose a padlock that is the right size for your needs. A longer shackle is necessary in some cases when you need to span a couple of inches. A shorter shackle is harder to break open, though, so if you can fit a lock with a shorter shackle you will enhance the security of the lock.
  • If your lock will be outdoors, focus on materials that withstand the elements.
  • If you are attaching the lock to a chain, get the chain as taut as possible so there is no unnecessary slack. Slack in the chain makes it easier to manipulate and lessens the security.
  • Padlocks can have combinations or physical keys. Combination locks are handy when there are multiple people who need to use the lock since keys can be easily misplaced.